New York - Viacom's (NYSE: VIA) Nickelodeon/MTVN Kids and Family Group announced on Friday that it plans to launch a number of additional virtual worlds for kids, building on the success of its existing Neopets and Nicktropolis sites. The company said it will develop virtual worlds for "SpongeBob SquarePants," "Monkey World" and "World of Neopia."

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http://www.nicktropolis.com