Dopplr is a simple web application that helps you keep track of friends and colleagues, wherever they are in the world. I travel to San Francisco about 10 times a year, and Dopplr lets me know who’s going to be in town when I’m there: listing all my friends who live there, as well as people who are visiting at that time – useful, eh. Not only that, but it also allows your connections to share their tips for the city – cool coffee shop, best place for free wifi etc, making it super-useful for checking out the places that you won’t find in guidebooks.

Check it out and add me as a friend.

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