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Non-Profit Uses Foursquare to Raise Environmental Awareness
Earthjustice, a non-profit public interest law firm, has blanketed San Francisco BART trains with posters that instruct riders to check in to the "Earthjustice ad" on Foursquare to help the firm raise money to support its wildlife protection initiatives.Read the full story here: Non-Profit Uses Foursquare to Raise Environmental Awareness

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