Rupert Murdoch bought MySpace two years ago and at least some people laughed. Why spend hundreds of millions of dollars for what might be a cyber fad? But now Microsoft has invested $240 million for just 1.6% of Facebook, a similar social networking site. That values this start-up at around $15 billion. Is the tech bubble back or is Microsoft crazy like a fox? Robert Guth reports on technology for the Wall Street Journal.
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