Blogging, Social Media, and Algorithms
Years ago, when we were on web forums with a dozen or more people we knew each other. Over time web forums and chat rooms became bigger, as more people adopted the World Wide Web. In the process we went from being part of several niche web forums to being part of MySpace, Friendster, Google Plus, Facebook, Twitter, Jaiku, Plurk and plenty of other sites.
As the number of people on these networks grew exponentially, so our social networks grew exponentially.