Groupon filed for an IPO Thursday planning to raise $750 million reports The New York Times. The filing reveals very fast growth: Shortly after launching in 2008, Groupon notched revenue of $94 million. Two years later, it had swelled to $713 million. The company reported $644.7 million of revenue in the first quarter of 2011 alone, with 83 million subscribers across 43 countries, according to its filing.

A succesful IPO could boost prospects for the many private tech companies that are waiting to go public. But is Groupon a tech company?