OSQA is an acronym that sands for “open source question & answer.” OSQA is a very flexible tool for building rich, self-organizing online communities. OSQA features multiple authentication methods (use your Twitter, Facebook, Gmail, etc. account to login), gamification, tagging, notifications, badges, search and more. Admins will appreciate the community policing features in OSQA that allow the community to flag comments as spam or junk so that they can be automatically banned from the site.