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DoubleClick is a company that develops and provides Internet ad serving services. Its clients include agencies, marketers (Universal McCann Interactive, AKQA etc.) and publishers who service customers like Microsoft, General Motors, Coca-Cola, Motorola, L'Oreal, Palm, Inc., Visa USA, Nike, Carlsberg among others. DoubleClick's headquarters are in New York City.
DoubleClick was founded in 1996. It was formerly listed as DCLK on the NASDAQ, and was purchased by private equity firm Hellman & Friedman in July 2005. Unlike many other dot-com companies, it survived the bursting of the dot-com bubble. In March 2008, Google formally acquired DoubleClick.