But is the long-term viability and success of Facebook a slam dunk?  You'd think so, considering 900 million people on the planet use the social network now valued at nearly $105 billion.

Not everybody thinks so.

The Telegraph's Michael Deacon says he was once addicted to Facebook but now thinks its users hardly have anything to say on it compared with Twitter, which he calls "magnetic" because it "incessantly breaks and circulates news." He even goes as far to say Facebook in a few years will "be as sad and lonely a ghost town "

I wouldn't go quite that far, but he makes some . Many people have grown tired of Facebook and do prefer alternate social networks,

Google certainly is serious about social and it's no secret that but who will come out on top?