…the team managed to perform “subgraph pattern-matching queries” on real-world social network data with more than 750 million “edges,” or connections between individuals, in less than a second. … If you’ve ever looked at the Twitter follower graph of a high-profile user …try to imagine the complexity of that network when you move down a level and look at all the users who follow each one of that super-user’s followers, and then move another level down and look at all those followers, and so on.

Limbic resonance suggest that the meaning of an object is not just made up of our own interpretation of that object but in part what other people think of it. We look at other people’s reactions to that object to help form our meaning. … this could be the power of social media in particular the back channel of Twitter, which can help amplify peoples interests in show and make it feel like they are watching it with a bigger audience.

we’ll continue to improve social search using links that appear in Google profiles. The changes are rolling out now and should be fully deployed by the end of the week. As always, you can click “more search tools” and select “social” to see more results from your network.

In any other given week, the fact that Elevation Partners this week bought $120 million of shares in Facebook, essentially valuing the social networking company at $23 billion, would be topic No. 1 on the Twittersphere…

Halfway into their big 15 importers in 15 days campaign, Posteroushas managed to make one of their competitors very angry. Twitpic is so angry, in fact, that they’re blocking the service and threatening legal action.