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

Tellico - Tellico is a KDE application for organizing your collections.

Kiwix - Kiwix enables you to have the whole Wikipedia at hand wherever you go!

Gamepedia - Gamepedia is a game cataloging application for everyone running Mac OS X.

Encyclopædia Britannica - Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.

Delicious Library - Delicious Library 3: Catalog your books, movies, music, software, toys, tools, electronics, & video games. Archive your life.