From the New York Times’ DealBook | Groupon, the social buying site that rejected a $6 billion takeover bid from Google earlier this month, is negotiating as much as $950 million in financing commitments with big institutional investors, including Fidelity Investments, T. Rowe Price and Morgan Stanley, people briefed on the matter said. Groupon is preparing to go public as soon as the end of 2011, sources said. Get the full story>>