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DaGeek

daGeek (previously TellmeTwin) is a social networking website where users can rate things based on whether they like them or not ( books, music, movies or just about anything). The user can then find people with similar opinions or people with opinions that are polar opposites.

The website won the Red Herring 100 Europe award in 2009.

daGeek is headquartered in Reykjavík, Iceland.