Are you familiar with Elepath? The Jake Lodwick incubator / startup / idea machine tosses around a number of fascinating ideas and one of the more recent is Morsel (which you can get a signup for here. It's like Mad Libs Meets Twitter. The general interface is super clean, tidy and a bit cute. I'm enjoying. I wish everyone I knew would sign up and fill out the "When In ______ city, be sure to..." question.