I know what porn you surf: Analytics gets creepy - Watching Websites - 0 views
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Karl Wabst on 26 Feb 10"There's a known weakness in browsers which we wrote about in the book. Every time we talked with someone about it, they'd ask us why we didn't start a company that took advantage of the loophole, and the answer was, well, it's creepy. The loophole basically lets you see where else your visitors have been on the Internet. Well, it's now out in the open, in two forms: Beencounter, and Haveyourfriendsbeenthere. To be perfectly clear, the site won't show you everything your visitors surf-just whether or not they've been to a set of sites you define. Here's how it works:"