Re:Rap Genius Raises $40M, Changes Name To Genius
by Slackwise on Saturday July 12, 2014 @05:17PM
(#8025809)
Almost. The concept was great, the implementation, not so much. Sad that Google didn't improve upon it. (Then again, they're no longer an innovation house, as I see it.)
http://en.wikipedia.org/wiki/Google_Sidewiki