When you're on a github user page (exemplar awesome dude), paste the above bookmarklet in your address bar and hit enter. While you're waiting for it to fetch the user's data, you'll see a bookmarklet status box. Once it's loaded you should notice three major changes: a sort box above the first repository, additional user stats and the number of watchers and forks in the upper right hand corner of each repository.

Source (www.railsfire.com)

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