Progopedia, the Free Encyclopedia of Programming Languages

Progopedia is a free (GNU Free Documentation License) web-based encyclopedia of programming languages. Progopedia is a young project, so if you can't find an article about your favorite language — please do not blame us, just sign up and contribute your knowledge (articles can be edited by registered users only, new users are manually approved). See "About Progopedia" to learn more about the project.