Wikibooks is dedicated to developing and disseminating free, open content textbooks and other classroom texts. We currently host 5666 textbook modules, in various stages of development, from those needing a lot of work to those that are nearly perfect.
game programming tutorials and source code for a variety of languages and platforms. Also, because this is a wiki, you are encouraged to contribute your knowledge and help the repository grow!
a community driven resource for open source software. Try starting a page about your favorite project, syndicating a blog for a topic, or browsing through tags people have added to projects or pages.
WikiIndex is a wiki of wikis, wiki people and wiki ideas. We are striving to help build community between people who use wikis by being a place to help new wiki folk find wiki communities they are interested in. We strive to help experienced wiki folk
Free web-based education site with comprehensive features for teachers, students and parents.
Anyone can teach and/or learn using the system, whether it's at school, at home, or on the move.