Henry Jenkins, co-director and founder of the MIT Comparative Media Studies Program (which I work for), has begun writing a blog. If you haven’t already visited, you should. Henry’s an amazing thinker and writer, and I’ve learned a lot from him.
PS. Henry writes about everything: games, movies, TV, comics, social media… the works.
PPS. His blog was launched in anticipation of his new book, Convergence Culture, which you should also check out.