University of California
University of California Museum of Paleontology: Understanding Evolution
This resource presents extensive information for learning about and teaching evolution including an in depth course "Evolution 101", teaching materials, and a resource library.
University of California
Ucmp: Are Birds Really Dinosaurs?
A great essay that illustrates how science is done as well as the relationship between dinosaurs and modern birds. Includes a picture to illustrate this concept, and contains many links to related sites.