Useful links

http://www.progenetix.net

http://string-db.org

http://flybase.org

http://www.ncbi.nlm.nih.gov

http://www.pubmed.gov

http://www.wormbase.org

Science, Nature, Cell(Current Biology, Neuron...), PLoS, Development, Genes Dev, EMBO J, PNAS, Genetics, Elsevier (DevBiol, MoD...), Landes Bioscience (Fly, Cell Cycle...)

http://www.genome.gov/glossary.cfm

All of the illustrations in the Talking Glossary of Genetics are freely available and may be used without special permission.