Who are Foursquare's big-name angels?

Fresh off its London launch, location-sharing service Foursquare revealed the rest of its big-name roster of angel investors. The company raised $1.35 million in a first round of funding last month from Union Square Ventures and O’Reilly AlphaTech Ventures.

Foursquare is one of the few breakouts from a pack of startups eager to take advantage of smartphones and GPS to build location-based social networks and services. Foursquare was designed differently in that it’s more of a game, where people compete to voluntarily “check-in” to different venues.

So who are they?

  • Joshua Schachter, founder of social bookmarking service Delicious
  • Alex Rainert, who co-founded Dodgeball with Foursquare founder Dennis Crowley and later sold it Google (where it then languished)
  • Jack Dorsey, co-founder of Twitter
  • Kevin Rose, founder of Digg
  • SV Angels LLC, prolific angel investor Ron Conway’s firm
  • Chad Stoller, a brand-marketing expert who came up with the idea to have people compete to be “mayor” of different places
  • Sergio Salvatore, a music and technology entrepreneur.

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