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http://socialmediaclassroom.com/

These are the public entries for this link:

• Social Media Classroom
  a free and open-source (Drupal-based) web service that provides teachers and learners with an integrated set of social media that each course can use for its own purposes—integrated forum, blog, comment, wiki, chat, social bookmarking, RSS, microblogging, widgets , and video commenting are the first set of tools.
  By davidbrake in academic with opensource opensourcecms teaching virtualcommunity

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