http://www.ncbi.nlm.nih.gov  (NCBI)

http://www.ebi.ac.uk  (European Bioinformatics Institute)

http://us.expasy.org  (ExPASy Molecular Biology Server)

http://www.ncbi.nlm.nih.gov/PubMed (PubMed)

http://www.geneontology.org (Gene Ontology)

http://www.hon.ch/MeSH (MeSH)

http://www.expasy.ch/sprot/ (Swiss-Prot)

http://www.genome.ad.jp/kegg/ (KEGG)

http://www.ebi.ac.uk/interpro/ (InterPro)

http://bioinformatics.oupjournals.org (Bioinformatics)

http://www.worldscinet.com/jbcb/jbcb.shtml (Journal of Bioinformatics and Computational Biology (JBCB))