OneTrueFan is a Foursquare like service for websites. You need to install a browser extension and a browser bar will start tracking your Web visits. Each time you go to a new domain or subdomain, you get 10 points. For each visit to a subsequent new page, you get an additional point. If you have more points than any other fan, you are the One True Fan.
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via Techcrunch
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via Techcrunch