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BlockChalk is the voice of your neighborhood. Use your mobile phone to leave messages on your block, your street, at the coffee shop, or anywhere you happen to be. Respond privately or publicly to messages from people in your neighborhood. It's easy: you don't even have to sign up. (learn more) Mansion Flats in Sacramento, CA, USA recent chalks [home] Http://www.YouTube.com/CommicBoy > Just make sure you bring lube  > I guess that's one way to use this app...  > For a good time, meet me at 21st & H at 12:15am on Thursdays. (men only plz) > Anyone doing anything fun today? > Want to see more chalks in Mansion Flats? Visit BlockChalk with your iPhone, Android phone, or Palm Pre! Blog  |  Press  |  Jobs  |  Guidelines  |  Terms  |  Privacy  |  Developers  |  Feedback  |  Contact Us