Great interview on Fresh Air with the cofounder of Twitter Biz Stone. I found his description of Twitter's creation very interesting. He explained that he + cofounder Jack Dorsey were supposed to be working on their podcast company Odeo but were uninspired and felt the need to 'scratch an itch'. This description fit nicely into one of my theories of work: that often the most exciting projects for creative folks are the ones they aren't supposed to be doing!