I don't know if it's a good example but the mister splashy pants on reddit incident was really cool and funny. Here's a ted talk about it: http://www.ted.com/ta

I don't know if it's a good example but the mister splashy pants on reddit incident was really cool and funny. Here's a ted talk about it: http://www.ted.com/talks/alexis_ohanian_how_to_make_a_splash_in_social_media.html http://www.ted.com/talks/alexis_ohanian_how_to_make_a_splash... Most of the people who were part of that probably didn't do anything else but even if 1% bought shirts, that's a net win for Greenpeace. You don't need everyone to make an impact. Same with the facebook groups, even if only 1% are hardcore activists, it's better than 0. I'm sure there are other cool examples.