CurrencySource - Fetches exchange rates from currencysource.com
by Kieran Johnson http://github.com/kieranj/currency_source
$ gem sources -a http://gems.github.com/ (you only need to do this once) $ gem install kieranj-currency_source
require 'rubygems' require 'kieranj-currency_source' c = CurrenySource::Currency.new("GBP") c.exchange_rate("USD") # => "1.45"