You're interested in evolution, but aren't sure how to narrow the topic? These links courtesy of Harvard University should give you plenty of good ideas.
For an opposing view, take a look at this page about the evolution controversy. What, basically, is the Creationists' position?
Are you into dinosaurs? Steven Jay Gould certainly is. There's a fun site at U.C. Berkeley called The Dinosauria that, among many other things, dispels dinosaur myths and features special exhibits.
Did your reading of Gould's work whet your appetite for more information about natural science? The Academy of Natural Sciences has a wonderful site to puruse, and this is its homepage.