Q. What are social network leaderboards? A. They are a list of members and content, a way of finding cool stuff, a reward system for members, a tribe unto themselves, an enforcer of good behaviour,...

I avoid TechMeme as much as possible but this stuff swam in front of my eyes: 3. 2. 1. Contact. The API has landed — Have you ever been on a web-site that asked you for your Google username and...