We first met the founders of Howcast.com at the State Department's Alliance of Youth Movements Summit. They were there to film some "how-to" guides for people interested in using social media to foster movements for human rights. Since then I've been peeking in from time to time on their work and getting increasingly more impressed with how they're navigating the new world of online video information sourcing. While a lot of the content on the site is generated by and for users (who earn reputation points by how others rate the quality of their offerings), Howcast is modeling a viderate style that is well worth studying. Advocacy groups of all stripes should take a look. For example, take a look at...