Wikibooks portal – Wikibooks: Here’s a cousin to the perfection that is Wikipedia. Wikibooks is an attempt to write community-edited textbooks on a variety of subjects in a variety of languages. There are some good ones on XML, General Computer Programming, and Perl . But those are just the geek topics — there are books on everything from languages to mathematics.
While this is all wonderful in theory, won’t it be a kick in the head when a college professor chooses to use one of these in his or her class instead of a traditional textbook (you know, the ones you had to sell your blood to buy at the mafia-run college bookstore)?
One drawback is that the Wikibooks server is as slow as Tara Reid in third period physics right now. I know they’re working on hardware issues over there.