MessageMe, an app that launched last week and raced up the charts to the #2 spot in social networking in the U.S., is confronting Facebook’s touchiness around access to its social graph.

And Twitter, like Facebook, is protective of its social graph, the network of friend and friend information that is a big part of what makes any social network sticky for users.

It's pretty crazy to think that Mark Zuckerberg created a social network site in his dormroom ... comes down to the concept of the social graph. The geeks explain it this way: It draws an edge ...

in which objects to be accounted for are represented as "nodes" in a network graph, joined by "edges" representing their acquaintance. Hodler is not merely a fan of her company's work ...

Twitter is still struggling to monetize its graph network, but in the consumer world, Twitter arguably provides the greatest reach. While the battle of the graphs can be measured in terms of ...

Of course, almost everyone expects that the sequester will, eventually, be disarmed, and the actual cuts to the military will be substantially smaller than what you're seeing on this graph.