Anton Strezhnev tries to explain why some posts get more "Likes" and others get more "Tweets" (via Monkey Cage): Posts that have graphics or are funny are more "likable" while wonkier posts are more "tweetable." I would add that the first relationship is a bit...
social network analysis
Google continues to take heat over its new uber-anti-privacy-architecture. Tts new Buzz application makes an important error in assuming that every link between nodes (email addresses) implies homophily, and that.