KR20050096422A - System and method for interlocking instant messaging services and web services - Google Patents

Abstract

The present invention relates to an instant messenger and a web interworking system and method, and the disclosed interlocking system provides a messenger interlocking web server that provides keyword information mapped to a corresponding web page when a web service is provided through a web browser, and a web browser. A keyword communication group database classified into communication groups corresponding to the mapped keywords according to the access of the web page through the web page, and storing user identification information for each keyword communication group, a keyword extraction program for extracting keyword information from the web page, and keyword communication Instant messaging service between a web-linked messenger server loading user identification information classified into a communication group corresponding to a keyword extracted from a group database and a user classified into a keyword communication group by displaying user identification information received from a web-linked messenger server. Article It includes a web-linked messenger, and sends messages in real time with buddies registered in the buddy list managed by the user, as well as any user who views or executes information corresponding to the same keyword on the website. By enabling the transmission, there is an advantage of providing the inclusiveness of the web service in terms of community formation while maintaining the real-time characteristics of the instant messenger.

Description

Instant messenger and web interworking system and method {SYSTEM AND METHOD FOR INTERLOCKING INSTANT MESSAGING SERVICES AND WEB SERVICES}

The present invention relates to an instant messenger and a web interworking system and method, and more particularly, to real-time message transmission with a buddy registered in a buddy list managed by a user, as well as to a same keyword in a web site. The present invention relates to an instant messenger and a web interworking system and method for transmitting a message in real time to any user who inquires or executes corresponding information.

Instant messenger is a client software that tells a user when a certain application is installed on the user's computer and is already listed in a list they have created. It is easy to send and receive large files such as pictures and video data while being able to send and receive.

The list of counterparts created by the user of the instant messenger to exchange messages is called a buddy list. A buddy list is a list of colleagues, workgroup members, or friends that you want to contact online, and is often used in instant messenger programs to check whether people on your list have access to your network.

However, since instant messengers can deliver messages only after selecting a specific buddy registered in the buddy list, they can't exchange messages with a person they haven't registered as a buddy. There is a further limitation.

In recent years, a blog service has been used as an internet communication method as a new type of web service including a web bulletin board, a personal homepage, and a community function.

A blog is a combination of the web, which means the Internet, and the log, which means data. It is a kind of personal site where you can post freely according to your interests. It has the form of a web page that uploads videos, etc., and forms a community through comments and replies.

These blogs have a wider inclusiveness than instant messengers because they target a large number of unspecified people in community formation, but they do not exceed the limits of web bulletin boards in real time.

Therefore, as an effort to take advantage of both the instant messaging service and the web service as described above, the instant message and the web interworking technology have been studied.

On the other hand, Korean Patent Laid-Open No. 2002-0083991 discloses "instant messenger and web interworking system and method" as a result of research and development on instant messaging and web interworking.

In the interlocking system and method disclosed in the same reference, a service provider registers an instant messenger friend with an instant messenger user, and sends a request for setting personal information and setting conditions for providing information through an instant messenger to a user registered as a messenger friend. In addition, the personal information received from the user terminal and the information providing condition are stored in a database, and when the stored information providing condition is satisfied, a web page for providing information and user input is generated, and the hyperlink and text data are transmitted to the user through the communication network. By sending to the instant messenger of the user, the user simply selects the hyperlink sent to the instant messenger to directly access the generated web page to enable the information provided and the user input.

However, the interworking system and method of the previously disclosed patent application is a technology proposed to provide various additional services in addition to chat or file transmission through an instant messenger, and like a known instant messenger, after selecting a specific buddy registered in a buddy list Because only a message can be delivered, you cannot exchange messages with other parties that you have not registered as a buddy. That is, in terms of community formation, there is a problem that is limited compared to the existing web chat as in the known instant messenger.

The present invention has been proposed in order to solve such a conventional problem, as well as sending a real-time message with a buddy registered in the buddy list managed by the user, as well as any information that queries or executes the information corresponding to the same keyword on the web site. By providing a message in real time with the user, the purpose is to provide the inclusiveness of the web service in terms of community formation while maintaining the real-time characteristics of the instant messenger.

An instant messenger and a web interworking system according to the present invention for realizing the above object include a messenger interlocking web server that provides keyword information corresponding to a corresponding web page when the web service is provided through a web browser; A keyword communication program which is classified into a communication group corresponding to the keyword according to the access of the web page through a web browser and stores user identification information for each keyword communication group, and a keyword extraction program for extracting the keyword information from the web page. And a web linked messenger server for loading the user identification information classified into a communication group corresponding to the extracted keyword from the keyword communication group database, and the user identification information received from the web linked messenger server. Communication group It includes a web-linked messenger that provides instant messaging services between users classified as.

In another aspect of the present invention, an instant messenger and a web interworking system include a web interlocking messenger providing a keyword search window for searching for a keyword corresponding to a web page, and a communication group corresponding to the keyword according to the access of the web page. A keyword communication group database in which user identification information is stored for each keyword communication group, and the user identification information classified into a communication group corresponding to a keyword input in the keyword search window is received from the keyword communication group database. A web-linked messenger server for transmitting the message to the server so that the web-linked messenger server can display the user identification information and provide an instant messaging service between users classified into the keyword communication group, and keyword information input in the keyword search window. With web pay Depending on the Web browser, a request for the web page request includes a messenger interlocking web server providing the web page corresponding to the keyword received by the keyword search window through the web browser.

In the instant messenger and the web interworking method according to the present invention, in a method for providing a communication service between a plurality of users through a user terminal equipped with a web browser for a web service and a web-linked messenger for an instant messaging service, the web browser Providing keyword information corresponding to the web page and the web page according to a web page request of the user, and classifying users into a communication group corresponding to the keyword according to the access of the web page through the web browser. Acquiring user identification information for each group; providing the user identification information of a group corresponding to the transmitted keyword information in the keyword communication group when the keyword information is transmitted through the web-linked messenger; To display user identification by group Between the keyword group through the communication group linked Web IM user includes the step of providing an instant messaging service.

In still another aspect of the present invention, an instant messenger and a web interworking method include a method of providing a communication service between a plurality of users through a user terminal equipped with a web browser for a web service and a web interlocked messenger for an instant messaging service. Classifying users into communication groups corresponding to the keywords according to the access of the web page through the web browser to obtain user identification information for each keyword communication group, and inputting a keyword search window provided by the web-linked messenger; If keyword information is transmitted, providing the user identification information of a group corresponding to the transmitted keyword information in the keyword communication group, and the keyword communication via the web-linked messenger displaying the received user identification information for each group. Instant messaging services between users in a group It comprises providing a.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. This embodiment allows for a better understanding of the objects, features and advantages of the present invention. However, the present invention is not limited to this embodiment.

In the instant messenger and the web interworking system according to the present invention, a web browser 111 and a web interlocking messenger 113 for an instant messaging service are installed. The user terminal 110, the messenger interlocking web server 131 for providing a web service through the web browser 111 and the web interlocking messenger server 132 for providing the instant messaging service through the web interlocking messenger 113 And a database unit 140 that stores various data for the web service and the instant messaging service by the interworking server 130.

The user terminal 110 provides a user interface environment for receiving a web service and an instant messaging service through a data communication network such as the Internet, and may be implemented as a general personal computer.

The web browser 111 enables the user terminal 110 to access a data communication network through the communication network 120 and provides a web service by the interworking server 130.

The keyword extraction program 112 is transmitted together with the web page provided from the companion server 130, and extracts keyword information from the web page received by the web browser 111 and transmits the keyword information to the web linked messenger 113.

The web interlocking messenger 113 is installed by the web interlocking instant messaging plug-in program transmitted from the interlocking server 130 to the user terminal 110 when operated in the form of a plug-in. The web-based messenger 113 is a keyword communication consisting of any user who inquires or executes information corresponding to the same keyword on a web site as well as transmitting a real-time message with a buddy registered in a buddy list managed by a user. It provides a web interlocking instant messaging service for sending messages in real time within a group.

The messenger interlocking web server 131 of the interlocking server 130 provides a unique web service and searches the web page database 143 to provide a web page including the keyword extraction program 112 to the user terminal 110. When a web page request signal including keyword information is received from the user terminal 110, the web page database 143 is searched to provide a web page including the keyword to the user terminal 110.

The web interlocking messenger server 132 searches the keyword received from the web interlocking messenger 113 and performs conditional search for a messenger / web interlocking service to search keyword communication group information including a plurality of users interested in the same keyword. Provided as a web-based messenger 113.

The member database 141 stores information such as a member ID, a password, a nickname, and the like obtained through a member registration procedure as in a normal member login method internet service, and such member information is a buddy list provided by the web-based messenger 113. It is used as the user distinguished name of.

The access IP database 142 stores the IP address of the user terminal 110 accessing the web page provided by the messenger interlocking web server 131, and the stored IP address is provided by the web interlocking messenger 113. It can also be used as a user distinguished name in a buddy list.

The web page database 143 stores web pages to be provided through the messenger interlocking web server 131. One or more keywords that can represent the page may be pre-mapped and stored together.

The interest keyword database 144 stores an interest keyword pre-mapped in a web page stored in the web page database 143 or an interest keyword mapped in real time to a web page stored in the web page database 143.

The keyword communication group database 145 stores user identification information of a keyword communication group consisting of a plurality of users interested in the same keyword, that is, a member ID, a nickname, an IP address, and the like, and is stored in the keyword communication group database 145. The identification information is transmitted to the web-based messenger 113 to provide a buddy list in a tree structure in which the identification names of the users belonging to the group are displayed as any one of the member ID, nickname, and IP address to form a community for each keyword communication group. Do it.

The service providing process by the instant messenger and the web interworking system of the present invention configured as described above will be described in detail below with reference to FIGS. 1 to 3. From the following description, the operation and functional characteristics of each component constituting the interworking system of the present invention will be more clearly shown.

First, the interworking process of the web interlocking messenger 113 that occurs as the user terminal 110 accesses the web page provided by the interlocking server 130 is as follows.

When the user terminal 110 accesses the Internet through the web browser 111 and the communication network 120 and then accesses the web site operated by the interlocking server 130, the page request signal generated by the web browser 111 is generated. Received by the message interlocking web server 131, the message interlocking web server 131 loads a main web page from the web page database 143 and transmits the main web page to the user terminal 110.

Here, when the web interlocked messenger 113 is operated in the form of a plug-in, the messenger interlocked web server 131 first checks whether the web interlocked instant messaging plug-in is mounted on the user terminal 110, and then, if it is not mounted, Like the plug-in mounting procedure, the corresponding plug-in program is installed in the user terminal 110 with the user's consent.

Subsequently, the main web page is provided through the web browser 111 by the user terminal 110 receiving the main web page from the messenger interlocking web server 131. When the user requests a sub web page through the main web page, In the same manner as the above-described main web page providing process, the corresponding sub web page is loaded from the web page database 143 and transmitted to the user terminal 110 (S201 to S203).

Meanwhile, the sub web page transmitted to the user terminal 110 includes keyword information of the corresponding page, and thereafter, a keyword extraction program 112 to perform a function of extracting a keyword from the corresponding page and delivering the keyword to the web interlocking messenger 113. It is sent as

When the web page database 143 is constructed, the keyword of the page may be determined and pre-mapped and stored in one or more keywords that can represent the page, and when the page is loaded for transmission to the user terminal 110. You can also map keywords in real time. The keyword mapping method may be implemented by a URL path method, a get / post method, an HTTP header method, or the like.

For example, in the case of using the URL path method, when two depths or less are included as keywords, the following URL paths 1 to 6 are 1 to 3 passes, 4 and 5 passes, and 6 times. Enclose the path with each keyword.

URL pass 1: http: //www.xxx.yyy/Cat_A/Cat_A1/Cat_A11

URL pass 2: http: //www.xxx.yyy/Cat_A/Cat_A1/Cat_A12

URL pass 3: http: //www.xxx.yyy/Cat_A/Cat_A1/Cat_A13

4 URL Pass: http: //www.xxx.yyy/Cat_A/Cat_A2/Cat_A21

URL pass 5: http: //www.xxx.yyy/Cat_A/Cat_A2/Cat_A22

URL pass 6: http: //www.xxx.yyy/Cat_A/Cat_A3/Cat_A31

As an example of the get / post method, when the keyword of the web page is determined to be “boa”, the following mapping is performed.

http: //www.xxx.yyy/bbs.jsp? cmd = read_news & keyword = boa

As an example of the HTTP header method, when the keyword of the web page is determined as "boa", <meta name = "keywords" content = "boa"> is inserted into the header.

At this time, the keyword extraction program 112 is preferably transmitted together with the sub web page from the companion server 130, the keyword extraction program 112 may be operated in the form mounted on the web-linked messenger (113).

In addition, when providing a sub web page as a member system, the user terminal 110 stores information such as a member ID, password, nickname, etc. obtained through the membership registration process in the member database 141 like a normal member login method Internet service. The membership authentication process is performed by comparing the information inputted from) with previously stored information, and the sub web page is selectively provided only when accessed by a normal member. In addition, even if it is not a member-only service, the user terminal 110 can obtain the connected IP address and store it in the access IP database 142, and its use will be described later.

Subsequently, the sub web page is provided through the web browser 111 by the user terminal 110 receiving the sub web page from the messenger interlocking web server 131. In this case, the keyword extraction program 112 is automatically executed to perform the corresponding sub web page. The keyword mapped to the web page is extracted and transmitted to the web-linked messenger 113 (S205 to S206).

The web interlocking messenger 113 transmits the keyword extracted from the sub web page currently being provided through the web browser 111 to the web interlocking messenger server 132 of the interlocking server 130, and the web interlocking messenger server 132 provides the web. The condition search for the messenger / web interworking service is performed on the keyword received from the companion messenger 113 (S207).

According to the keyword condition search, it is first determined whether the keyword of the web page is a keyword that is registered in the keyword database 144 of interest. If pre-mapping is performed in the above-described web page and keyword mapping process, the interest keyword database 144 is also constructed at this time. If the real time mapping is performed, the interest keyword database 144 is also constructed and updated in real time.

If the keyword of the web page is a keyword registered in the keyword keyword database 144, the keyword communication group database 145 is searched to determine whether a communication group having the same keyword as the keyword exists (S208 to S209).

Here, the keyword communication group means that a plurality of users who are interested in the same keyword form a community through the web interlocking messenger 113. If the web page including the keyword is already accessed by another user, the keyword. A keyword communication group with a group name is already created. If there is no user accessing the web page, the communication group is not created.

As a result of the determination in step S209, if the communication group does not exist, a new communication group is created using the corresponding keyword as the group name and registered in the keyword communication group database 145, wherein the member ID stored in the member database 141 is stored. Any one or all of the and nicknames are stored as the user identification name or the IP address stored in the access IP database 142 is stored as the user identification name (S210).

In addition, if a communication group already exists, the information of the existing communication group having the corresponding keyword as the group name is updated. Also, any one or both of the member ID and the nickname stored in the member database 141 are added as the user identification name. Store or additionally store the IP address stored in the access IP database 142 as a user identification name (S211).

Thereafter, the web interlocking messenger server 132 loads the communication group information stored in the keyword communication group database 145 and transmits it to the web interlocking messenger 113 of the user terminal 110, and the web interlocking messenger 113 corresponds to the corresponding group. The buddy list of the tree structure is provided so that the distinguished names of the users belonging to the group under the name are distinguished by any one of the member ID, the nickname, and the IP address (S212 to S213).

On the other hand, as a result of the determination in step S208, if the keyword of the web page is a keyword that is not registered in the interest keyword database 144, it will be said that the keyword is not socially concerned, in this case, the web-linked messenger 113 The service is completed as much as providing a notice of an unregistered keyword through.

Next, the interworking process of the web browser 111 made according to the keyword selection via the web interlocking messenger 113 is as follows.

The web-linked messenger 113 mounted on the user terminal 110 provides a keyword search box that can be commonly found in a general internet search engine service. When the interworking server 130 and a specific internet search engine are designed to work together, If the conventional Internet search service can be provided, but will be limited to providing a keyword search box for searching the keyword communication group stored in the keyword communication group database 145.

The web interlocking messenger 113 transmits the keyword to the web interlocking messenger server 132 of the interlocking server 130 when the keyword of interest is input in the keyword search box, and the web interlocking messenger server 132 is the web interlocking messenger 113. A condition search for a messenger / web interworking service is performed on the keyword received from the user (S301 to S303).

When the keyword condition search is performed, it is first determined whether the keyword of the web page is a keyword registered in the keyword keyword database 144. If the keyword of the web page is a keyword registered in the keyword keyword database 144, the keyword is searched. The keyword communication group database 145 is searched to check whether a communication group having the same keyword as that keyword exists (S304 to S305).

As a result of the determination in step S305, if the communication group does not exist, a new communication group is created using the corresponding keyword as the group name and registered in the keyword communication group database 145. At this time, the member ID stored in the member database 141 is used. Any one or all of the and nicknames are stored as the user identification name or the IP address stored in the access IP database 142 is stored as the user identification name (S306).

If the communication group already exists, it updates the information of the existing communication group having the keyword as the group name, and additionally stores any or all of the member ID and nickname stored in the member database 141 as the user identification name, or The IP address stored in the access IP database 142 is further stored as a user identification name (S307).

Thereafter, the web interlocking messenger server 132 loads the communication group information stored in the keyword communication group database 145 and transmits it to the web interlocking messenger 113 of the user terminal 110, and the web interlocking messenger 113 corresponds to the corresponding group. A buddy list of a tree structure is provided so that the distinguished names of the users belonging to the group under the name are distinguished by any one of the member ID, nickname, and IP address (S308 to S309).

In addition, the web interlocking messenger 113 notifies the web browser 111 of the keyword input in step S301, and when a new web page is requested by the user, the web interlocking messenger 113 sends the keyword along with the page request signal to the messenger interlocking web. Send to server 131. Here, the program operating environment may be set so that the web browser 111 automatically requests a web page irrespective of the request by the user (S310 to S311).

Upon receiving the web page request signal, the messenger interlocking web server 131 loads a web page mapped with a corresponding keyword from the web page database 143 and transmits the web page to the user terminal 110, and the main page from the messenger interlocking web server 131. The web page including the keyword is provided by the user terminal 110 receiving the web page through the web browser 111 (S312 to S314).

On the other hand, as a result of the determination in step S304, if the keyword of the web page is a keyword that is not registered in the interest keyword database 144, it will be said that the keyword is not socially concerned, in this case, the web-linked messenger 113 The service is completed as much as providing a notice of an unregistered keyword through. In addition, even if the user does not request a new web page in step S310, the service provision is completed.

In the above description, but limited to one embodiment of the present invention, it is obvious that the technology of the present invention can be easily modified by those skilled in the art.

For example, in steps S213 and S309 of the above-described embodiment, a user identification name included in the same keyword communication group is provided as a buddy list in a tree structure, but a chat window may be provided to users included in the same keyword communication group. .

In addition, the case in which the corresponding keyword communication group is generated after the user accesses the web page is described as an example. However, the communication group may be previously created for each keyword of interest.

Such modified embodiments should be included in the technical spirit described in the claims of the present invention.

As described above, the present invention not only transmits a real-time message with a buddy registered in a buddy list managed by a user, but also transmits a message in real time with any user who views or executes information corresponding to the same keyword on a web site. By doing so, it is effective to provide inclusiveness of web services in terms of community formation while maintaining the real-time characteristics of instant messenger.

1 is a block diagram of an instant messenger and a web interworking system according to the present invention;

2 is a flowchart illustrating an interworking process of an instant messenger by accessing a web page according to the present invention;

3 is a flow chart showing the interworking process of the web server by the keyword selection according to the present invention.

Claims (21)

In the case of providing a web service through a web browser, a messenger interlocking web server that provides keyword information corresponding to the web page together; A keyword communication group database classified into a communication group corresponding to the keyword according to the access of the web page through the web browser, and storing user identification information for each keyword communication group; A keyword extraction program for extracting the keyword information from the web page; A web-linked messenger server for loading the user identification information classified into a communication group corresponding to the extracted keyword from the keyword communication group database; Web-linked messenger which provides the instant messaging service between users classified into the keyword communication group by displaying the user identification information received from the web-linked messenger server. Instant messenger and web interlocking system comprising a. A web-linked messenger that provides a keyword search box for searching a keyword corresponding to a web page, A keyword communication group database which is classified into a communication group corresponding to the keyword according to the access of the web page and stores user identification information for each keyword communication group; The web-linked messenger server displays the user identification information by transmitting the user identification information classified into a communication group corresponding to a keyword inputted to the keyword search window from the keyword communication group database to the web-linked messenger server. A web interlocking messenger server to provide an instant messaging service between users classified into a communication group; A web browser for requesting a web page with keyword information input in the keyword search box; A messenger linked web server that provides a corresponding web page corresponding to a keyword entered in the keyword search box through the web browser in response to a request of the web page. Instant messenger and web interlocking system comprising a. The method according to claim 1 or 2, The web-linked messenger is an instant messenger and a web-linked system, characterized in that mounted on the user terminal in the form of a plug-in program. The method according to claim 1 or 2, The interworking system further includes a member database in which a member ID or nickname information obtained through a member registration process is stored, such as a member login type internet service. The web-based messenger, the instant messenger and the web-interlocking system characterized in that the member ID or nickname information is received from the web-linked messenger server as the user identification information and displayed. The method according to claim 1 or 2, The interworking system further includes an access IP database storing an IP address accessing the web page. The web interlocking messenger, the instant messenger and the web interlocking system, characterized in that receiving the IP address as the user identification information from the web interlocking messenger server to display. The method according to claim 1 or 2, The interworking system, the instant messenger and web interlocking system further comprises a web page database in which one or more keywords that can represent the corresponding web page is pre-mapped and the web page and the keywords are stored together. The method according to claim 1 or 2, The messenger interlocking web server, the instant messenger and web interlocking system, characterized in that for transmitting the web page to the web browser in real time mapping. The method according to claim 1 or 2, The keyword extracting program is provided with the web page from the web-based messenger server. The method according to claim 1 or 2, The keyword extraction program, the instant messenger and the web interlocking system, characterized in that mounted on the web-linked messenger. A method of providing a communication service between a plurality of users through a user terminal equipped with a web browser for a web service and a web-connected messenger for an instant messaging service, the method comprising: Providing a web page and keyword information corresponding to the web page according to a web page request of the web browser; Classifying users into communication groups corresponding to the keywords according to the access of the web page through the web browser to obtain user identification information for each keyword communication group; Providing the user identification information of a group corresponding to the transmitted keyword information in the keyword communication group when the keyword information is transmitted through the web-linked messenger; Providing an instant messaging service between users of the keyword communication group through the web-linked messenger displaying the received user identification information for each group; Instant messenger and web interworking method comprising a. A method of providing a communication service between a plurality of users through a user terminal equipped with a web browser for a web service and a web-connected messenger for an instant messaging service, the method comprising: Classifying users into communication groups corresponding to the keywords according to the access of the web page through the web browser to obtain user identification information for each keyword communication group; Providing the user identification information of a group corresponding to the transmitted keyword information in the keyword communication group when the keyword information input in the keyword search window provided by the web-linked messenger is transmitted; Providing an instant messaging service between users of the keyword communication group through the web-linked messenger displaying the received user identification information for each group; Instant messenger and web interworking method comprising a. The method of claim 11, The interworking method may further include providing a corresponding web page corresponding to the transmitted keyword when the keyword information is transmitted together with the web page request from the web browser. The method according to claim 10 or 12, The instant messenger and the web interworking method characterized in that the keyword extraction program for performing the function of extracting the keyword information and delivering to the web-linked messenger when the web page is provided. The method according to claim 10 or 12, The web interlocking messenger includes a keyword extracting program for extracting the keyword information included in the web page. The method of claim 10 or 11, The mapping of the web page and the keyword information, the instant messenger and the web interworking method, characterized in that pre-mapping by determining one or more keywords when producing the web page. The method of claim 10 or 11, The mapping of the web page and the keyword information, the instant messenger and the web interworking method, characterized in that for mapping the keyword in real time when providing the web page to the web browser. The method of claim 10 or 11, The interworking method may further include acquiring at least one of a member ID and a nickname of the user through a member registration process, such as a member login type internet service. And at least one of the obtained member ID and nickname as the user identification information. The method of claim 10 or 11, The interworking method further includes obtaining the access IP address of the user, And using the obtained access IP address as the user identification information. The method of claim 10 or 11, The providing of the user identification information may include: checking whether a communication group having the same keyword as the transmitted keyword information exists in the keyword communication group from which the user identification information is obtained; If there is no communication group having the same keyword, creating a new communication group by using the transmitted keyword as a group name; Updating information of an existing communication group having the transmitted keyword as a group name if a communication group having the same keyword already exists; Instant messenger and web interworking method comprising a. The method of claim 10 or 11, The web-linked messenger provides the user identification information for each group as a buddy list in a tree structure. The method of claim 10 or 11, The web-linked messenger provides a chat window to users included in the same keyword communication group based on the received user identification information for each group.