Tagged is a social discovery website based in San Francisco, California, United States, founded in 2004. Tagged allows members to browse the profiles of other members, play games, and share tags and virtual gifts. Tagged says it has 100 million members. As of 28 September 2011 (2011-09-28), Quantcast reports Tagged monthly unique users at 5.9 million U.S., and 18.6 million globally. Tagged has acquired the social and instant messaging client Digsby and the gaming application WeGame. Michael Arrington wrote in April 2011 that Tagged is most notable for the ability to grow profitably during the era of Facebook.

In 2009, Tagged was criticized for sending deceptive bulk email and paid $1.4 million in legal settlements regarding those practices. The company has since adopted privacy reforms and changed its invitation processes.

Tagged is an Inc. 500 company ranking #476 on the 2010 Inc. list of fastest growing independent U.S. private companies and #80 on Forbes' 2011 list of America's Most Promising Companies.

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