Blacktop for iPhone Lets You Organize Foursquare and Facebook Check-in Into Trips (Preview)

From the beginning of the social media phenomenon people started to share, among other infos, the places they visit or where they go on holidays. Foursquare transformed this niche into a business line and also an industry allowing brands to advertise their locations and offer to the users incentives for “checking in” through their premises. [...]

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