Little Bird is a startup that we’ll be following very closely. Launched by former ReadWriteWeb and Techcrunch writer Marshall Kirkpatrick, Little Bird launched in private beta today. The idea is simple: the easiest way to find the people and conversations to follow concerning a particular topic is to trace the sources back to the connections associated with it. While we wait for our beta to come up, take a look at what Kirkpatrick himself says about the project: …