"…can the Mountain View online goliath continue its winning streak for another 10 years? Unlike during its infancy, Google now has a target on its back along with a sizable workforce – 19,604 across the globe – that makes it difficult to be nimble."

"In essence, Facebook users didn’t think they wanted constant, up-to-the-minute updates on what other people are doing. Yet when they experienced this sort of omnipresent knowledge, they found it intriguing and addictive. Why? Social scientists have a name for this sort of incessant online contact. They call it “ambient awareness.” It is, they say, very much like being physically near someone and picking up on his mood through the little things he does — body language, sighs, stray comments — out of the corner of your eye."