[hornbaker]

My first try, with a hockey-stick growth pattern starting 2007. Expected a match with "twitter," instead got "baby poop."

http://www.google.com/trends/correlate/search?e=id:iOj8ICadD...

[zmitri]

I believe twitter didn't start seeing crazy growth until 2009 once they focus on activating their users and moving away from the idea that everyone needs to tweet to use twitter.

Google trends seems to confirm 2009 was when it started to really work too http://www.google.com/trends/explore?q=twitter#q=twitter&cmp...