Major League Baseball is leading off on Facebook tonight.  The social media giant announced yesterday it's made a deal to stream 20 big league games live, every Friday night for the rest of the season.  Facebook said in a statement that the games will be available to all Facebook users in the U.S.  Facebook will use a feed from the local broadcaster for one of the teams in that Friday's game. 

Baseball's Facebook season begins with tonight's game between the Colorado Rockies and the Cincinnati Reds.

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