Interesting article on Networking sites:

http://www.businessweek.com/magazine/co … 963001.htm

Meanwhile, the phenomenon of these exploding networks has companies clamoring to be a part of the new social landscape. News Corp. (NWS ) Chief Executive Rupert Murdoch has spent $1.3 billion on Web acquisitions so far to better reach this coveted demographic -- $580 million alone for the July purchase of MySpace parent Intermix Media. And Silicon Valley venture capitalists such as Accel Partners and Redpoint Ventures are pouring millions into Facebook and other social networks. What's not yet clear is whether this is a dot-com era replay, with established companies and investors sinking huge sums into fast-growth startups with no viable business models. Facebook, barely a year old and run by a 21-year-old student on leave from Harvard, has a staff of 50 and venture capital -- but no profits