Facebook Community Pages are not a new feature; they were rolled out as beta in April 2010. There was quite a bit of commentary about the confusion Community Pages caused around how they are created, who chooses which Community Pages you connect with, and what content they provide.

In essence, Community Pages are Facebook’s controlled version of Wikipedia, and right now much of the content on Community Pages comes from content Facebook licensed directly from Wikipedia.

Read more: http://blogs.sitepoint.com/2010/10/22/facebook-community-pages/