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Who Knew? LivingSocial customers are "richer, younger, and have received more formal education" than Groupon users. No Verdict Yet: Traders are betting that there is a 90% chance Raj Rajaratnam will be found guilty of insider trading. Mea Culpa: Amazon says its sorry for the cloud outage last week. Tripping Scurvy: How long can you survive on just beer? IPO: Renren boosts its IPO price range by 30%.