Citizendium
A wiki for providing free knowledge where authors use their real, verified names.
22 Alternatives To Citizendium
Alchetron
Visit Alchetron it is a free social encyclopedia for Internet users where you can search & share thousands of organized topics which can be anything and everything !!
Daily Curiosity for iOS
The top 5 things to learn on Curiosity.com, delivered daily.
Editthis
A free wikifarm project allowing to keep private wiki and build it up through MediaWiki syntax.
Everipedia
The world’s largest english encyclopedia
Fact Monster
FactMonster is one of the largest sources of information on the internet.
Fandom
Anyone can create a wiki!
Google Knol
Google Knol was a free web based encyclopedia that was launched by Google as a competitor of the Wikipedia.
H2g2
H2g2 is a collaborative and user contributed web-based encyclopedia that claims to be an unconventional to guide about everything between life and universe.
Infogalactic
The planetary knowledge core
Infoplease
Most of the people are unaware about this web based encyclopedia that is no doubt the tough competitor of most of the online encyclopedias.
Inquire by Tamper
The easiest way to discover the world around you.
Investopedia
Investopedia has a lot of information to share with business mind people.
Metapedia
Metapedia is an electronic encyclopedia which focuses on culture, art, science, philosophy and…
MyWikis
A premium wiki host with top-class quality, excellent support, and VisualEditor (a WYSIWYG…
Oppia
Oppia is a free, open-source learning platform.
Pantheon
The professional website platform for Drupal & WordPress sites.
Scholarpedia
Scholarpedia is a wiki-based encyclopedia that features the English language articles and helpful materials only.
Stubia
Stubia is a mobile encyclopedia that limits each article to 160 characters: this limitation makes…
Viki - Wikipedia
Discover the world and enjoy beautiful typography with Viki - Wikipedia.
Wikipanion
Wikipanion is the best and fastest Wikipedia browsing application for the iPhone.
Wikipedia
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.