OMIM, Online Mendelian Inheritance in Man
This database is a catalog of human genes and genetic disorders
The Tree of Life
A distributed Internet project containing information about phylogeny and biodiversity.
Encyclopedia of Life
This site is designed to make available what we know about the distribution, biogeography, biodiversity, and identification of Odonata (dragonflies and damselflies) world-wide.
Comprehensive science-specific search engine on the Internet. Driven by the latest search engine technology, Scirus searches over 167 million science-specific Web pages, enabling you to quickly:
Science.gov is a gateway to authoritative selected science information provided by U.S. Government agencies, including research and development results.
PubMed Central (PMC)
U.S. National Library of Medicine's free full text archive of biomedical and life sciences journal literature