Facebook has about 67 million members. With the new "People You May Know" feature, the number of connections per member will skyrocket, extending the reach and stickiness of Facebook's social graph.
People You May Know finds people within six degrees or so of separation and suggests them as potential friends. It appears that the threshold is set at four, meaning you are connected to four of the same people as the suggested "friend." FriendFeed has taken a somewhat similar approach for recommending new people to "follow."
This type of recommendation engine, which taps … Read more