Kevin: I am a huge fan of visualisations, and I see them being a larger part of what we do as journalists. They can often uncover patterns in complex sets of information. Mashable highlights some fascinating visualisations that look at Facebook, the networks, connections and sharing in that vast group of groups.

Kevin: Fred Wilson of Union Square Ventures talks explores the idea of sharing so much of one's life on the internet. "I also understand that many people will never twitter about their golf exploits or check into restaurants via foursquare. Not everyone wants to "life stream" like I do.

But a lot of people do. Extroversion on the web is a growing phenomenon."