Human evolution from several perspectives. The main portions of this are an "interactive documentary" and a timeline. From the Institute of Human Origins.
This site describes itself as "an ambitious project to organize and make available via the Internet virtually all information about life present on Earth." They plan to have a page on each organism on earth.
A national resource for molecular biology information that provides access to extensive resources created and maintained by NCBI about molecular biology, biochemistry, and genetics, including GenBank, the Genome Projects, and various molecular databases.