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.
a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, we provide free access to researchers, historians, scholars, and the general public.
a Silicon Valley startup creating technology that makes it easy to share documents online. You can think of Scribd as a big online library where everyone can publish original content, including you! Publish Yourself Online