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Most Active Applications

SkyTruth FrackFinder

Help SkyTruth identify drilling ...

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Flickr Person Finder

Do you see a human in this photo...

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Tweet Clicker

Classifying tweets and SMSs

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Héraðsdómar - sýknað...

Dómar héraðsdómstóla flokkaðir í...

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Most Active Volunteers

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