Great! First releases will probably be private betas. Twitter yes, Facebook somewhat (for now -- the API and data graph are very complicated!), Reddit probably

Great! First releases will probably be private betas. Twitter yes, Facebook somewhat (for now -- the API and data graph are very complicated!), Reddit probably not initially (but on my lists; need to learn how to get the data), and Hacker News probably eventually (also need to learn how to get the data).