Encyclopedias
- WatchKnowLearn ! - free educational videos 109054
- WatchKnowLearn - Wikipedia 109055
- Citizendium 109056
- Citizendium - Wikipedia 109057
- Encyclopedia of Earth 109058
- Encyclopedia of Earth - Wikipedia 109059
- Citizendium - Wikipedia 196158
- Google Book: The Wikipedia Revolution: How a Bunch of Nobodies Created the World's Greatest Encyclopedia by Andrew Lih 196175
- Google Book: Wikipedia: The Company and Its Founders by Jennifer Joline Anderson 196173
- Nupedia - Wikipedia 196157
- Larry Sänger - Wikipedia ( Founder of Wikipedia) 196168
- Everipedia - Wikipedia 196169
- Larry Sanger ( Founder of Wikipedia) 196171
- Citizendium 196172