Imagine a world in which every person has free access to the sum of all human knowledge. That’s what we’re doing. And we need your help. (as seen on Portals and KM)
The Wikimedia Foundation Inc. is a non-profit
organization with the goal of providing free knowledge to every
person in the world. Meeting this goal through the maintenance,
development and distribution of free content, Wikimedia relies on
public
donations to run its wiki-based projects.
Wikimedia provides computing and network resources to create and
distribute many reference works including Wikipedia, Wiktionary,
Wikiquote, Wikibooks, Wikisource, and the Wikimedia Commons. The
content of these projects is provided to the public free of charge.