If you have checked in with Foursquare in San Francisco in the last three weeks, Jesper Andersen probably knows where and when — even if you’ve set your check-ins to be published to friends only.

via White Hat Uses Foursquare Privacy Hole to Capture 875K Check-Ins | Threat Level | Wired.com.

…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.

via Finding Patterns in Social Data a Big Problem — the Cloud Can Help.

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.

via Julian Cole – Adspace Pioneers – Digital Strategy -.

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.

via Social Web Blog: Find more in Google Social Search.

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…

via peHUB » Where’s The Love for Facebook/Elevation Partners Deal?.

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.

via Twitpic Blocks Posterous’ Import Tool; Out Come The Lawyers.

The battle between Facebook and Google just got even hotter with the news that the social network has hired Matthew Papakipos, the man who started and lead both the Google Chrome OS project and the Chrome WebGL GPU hardware project for hardware-accelerated graphics.

via Facebook Snags the Guy Who Built Google\’s Chrome OS.

Neuroeconomist Paul Zak has discovered, for the first time, that social networking triggers the release of the generosity-trust chemical in our brains. And that should be a wake-up call for every company.

via Doctor Love | Fast Company.

via Bing is \’stupid\’ and \’rubbish\’, says Bing | News | TechRadar UK.

You do not merely want to be considered just the best of the best. You want to be considered the only ones who do what you do. ~Jerry Garcia

Read more >> The Grateful Dead 4-Step Guide to the Magical Influence of Content Marketing | Copyblogger.