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Ever since Google launched its new Google+ social network, we and others have pointed out that the search giant clearly has more in mind than just providing a nice place for people to share photos of their pets. For one thing, Google needs to tap into the “social signals” that people provide through networks such as Facebook so it can improve its search results. There’s a larger motive, too: As Chairman and former Chief Executive Officer Eric Schmidt admitted during an interview in Edinburgh over the weekend, Google is taking a hard line on the real-name issue because it sees Google+ as an “identity service” or platform on which it can build other products.