In some parts of the world, location based services like Foursquare and Gowalla are the rage. It is yet to catch on in other areas, but there are encouraging signs that this is the future considering how the segment is growing.

Here are the top five location based services in terms of number of registered users

1. Where.com : 3 million users
2. MyTown : 2 million
3. BrightKite : 2 million
4. Foursquare : 1.1 million
5. Gowalla : 250,000

[via GigaOm]

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