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The visit came just as Morgan Stanley is also in talks with Groupon to arrange an IPO, according to the report, which cites "a person familiar with the matter." A Groupon rep could not be reached for comment.
Goldman was also behind a recent funding round of $500 million for Facebook, which is expected to go public in 2012.
The report of the visit is the latest bit of intrigue around Groupon, which rebuffed a $6 billion takeover offer from Google in December. Sources say Groupon is preparing for a spring IPO that would put the startup at a valuation somewhere between $15 billion and $20 billion.