Lius

Lius counts the number of Linux users in the world.

Golden

Mapping all human knowledge

The planetary knowledge core

A decentralized crowdsourced encyclopedia.

Oppia is a free, open-source learning platform.

This site was created to help sort through the many LiveCDs available.

Welcome to WikiIndex, a wiki of all wiki, wiki people, wiki software, wiki farms, and wiki ideas, a…

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Live world statistics on population, government and economics, society and media, environment, food, water, energy and health.