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"How can you tell that location-based social networking service Foursquare is entering the mainstream? Well, the addition of the movie-star-turned-California-governor to the service is a very good clue. \nYes, you can now track Arnold Schwarzenegger's whereabouts on Foursquare. He already has more than 1,000 followers, which is no big surprise considering his Foursquare account is advertised on his official page. \nIt's a good sign for Foursquare. When Twitter started showing signs of greatness, the debate about whether it would ever become a mainstream service raged on for months. Foursquare now seems to be entering this stage of development. What do you think: Will Foursquare ever be a truly mainstream service? Please share your opinion in the comments. \n\n\nFor more social media coverage, follow Mashable Social Media on Twitter or become a fan on Facebook\n\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2010/04/26/schwarzenegger-foursquare/>