There are more uses for twitter than simply tweeting. People are getting creative with it. I like this idea from Jeep, however, I would never want to spend time with that. But if you’re into puzzles, maybe. Also, there is this example from Berghs School of Communications, in Sweden. Check out don’t tell Ashton here: http://creativity-online.com/work/berghs-school-of-communication-dont-tell-ashton/20004.