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 !!
17 Alternatives To Alchetron
Citizendium
A wiki for providing free knowledge where authors use their real, verified names.
DokuWiki
DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn’t require a database. It is loved by users for its clean and readable syntax. The ease of maintenance, backup and integration makes it an administrator’s favorite.
Freebo
Freebo is Topics search tool. If you don’t know something, ask Freebo, it probably knows.