Baltimore-based Urban Communications has added a third entity to its portfolio, with the acquisition of African American social network NiggaSpace.com. Financials were not disclosed. NiggaSpace.com, which Google Analytics says garnered 7,000,000 visits in 2007, says it now aims to better its technology with enhanced content filters and privacy controls. Launched in 2008, Urban Communications also recently launched social net OurSpace.com for “historically black college and university students,” and online magazine BlackPower.com. Release.

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NiggaSpace.com and OurSpace.com join a crowded space which includes IAC‘s RushmoreDrive.com and WaPo’s TheRoot, as well as niche ad networks from BET and Glam Media.