Overview SNP HiTLink is a computer program providing a useful pipeline to directly connect SNP (Single Nucleotide Polymorphism) data and linkage analysis program. SNP HiTLink currently supports the data from SNP chips provided by Affymetrix (Mapping 100k/500k array set, Genome-Wide Human SNP array 5.0/6.0) and Illumina (recently supported), carrying out typical linkage analysis programs of MLINK (