IMPACT
03/18/2010 05:12 am ET Updated May 25, 2011

11 Twitter Activists You Should Be Following

Tired of reading tweets about breakfast and balloon boys? We've compiled a list of some of the top activists on Twitter, many of whom you might not even know about.

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BEFORE YOU GO
11 Twitter Activists You Should Follow
PHOTO GALLERY
11 Twitter Activists You Should Follow