Coturnix and John Wilkins have been busy compiling a list of Basic Concepts in Science and Math, and I have begun a series on the basics of ecology here at TVG. There is some great stuff being compiled, and my reading list has just quadrupled.
Spread the word and contribute! Seed Media Group (the host of Scienceblogs) has agreed to create a home for all of the compiled posts. This "living textbook" of sorts has the potential to be a far greater resource than Wikipedia for its accessibility, personality and depth.