BBC Education: Evolution http://www.bbc.co.uk/education/darwin/
A comprehensive look at Darwin's theory, its scientific foundation, and the impact it has had on modern culture. Includes complete text of Origin of Species, along with a RealVideo feature on natural selection.
Becoming Human http://www.becominghuman.org/
Journey through the story of human evolution in a multimedia documentary experience. Requires high-speed Internet connection and Macromedia Flash.
NOVA Online: Odyssey of Life http://www.pbs.org/wgbh/nova/odyssey/
Includes an essay by Joe Levine on embryonic development and evolution, an ongoing 'How Did We Get Here' debate between Kenneth R. Miller and Phillip E. Johnson, and video clips of morphing embryos.