That was also within a few years of Bush W making moves to cut protest effectiveness, such as the free speech zones. Not to mention, there are plenty of examples of social media creating very effective protests, which then inspired heavy handed tactics in retaliation, with examples of this from all over the world.

Do you think what happened to OWS was just because of tweets lack of effectiveness? I don't believe that, and neither should you.

I did try to find the study you mentioned, as well as the podcast, but came up empty. Got a link handy?