BlockChalk is an anonymous location-based social networking service that has raised funding from Battery Ventures, Mitch Kapor, Founder Collective, Harrison Metal, Joshua Schachter, Tom McInerney, Josh Stylman, and David Liu. BlockChalk essentially encourages people to share information about the neighborhood or places around it.
BlockChalk will use the funding to hire additional engineers and expand their service. However BlockChalk faces intense competition amongst other location-based services. The service is currently popular in San Francisco, Los Angeles, and New York.
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