In 100 milliseconds Weatherbill crunches forecasts and 30 years of National Weather Service data for the user's location.

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Seaton also adores UrbanSpoon, a similar geo-location-powered recommendation service, with especially strong user-powered listings for restaurants and cafes.

BBC: Pro travellers reveal their top tech tools

There is also a mobile version of the service that seeks to tie activities and updates to the phone user's location.

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