A most amazing collection of essays explaining everything you want to know about evolution and more. Don't miss the first one, Introduction to Evolutionary Biology for a great overview on the topic. Also available is the full text of Darwin's The Origin of Species.
An even better and wider collection of articles to tell you everything you ever wanted to know about Evolution and never dared to ask. The Evolution 101 course is just the perfect introduction to the topic, nicely complemented with good quality images.
Special selection of articles on Evolution from Discover magazine.
The Birth of the Theory of Evolution
Google Earth file showing Charles Darwin's voyage on the Beagle. Much more information in the author's website.
Series of podcasts produced by the U.S. National Public Radio on a variety of Darwin's related topics.
Wikipedia's article on Charles R. Darwin.
The Process of Evolutionary Change
Learn about the three simple ingredients that drive evolution.
Compilation of especially elegant and enlightening examples of evolution.
Top 10 in-depth articles about evolution from New Scientist.
Wikipedia's article on Evolution.
Wikipedia's article on Natural Selection.
Learn why creatures which reproduce sexually, such as humans, have not been overrun by those which reproduce asexually.
Apple-trees' autumn red colours could have evolved to warn insects, a study says.