Mark Zuckerberg is chastened. 587,715 members joined a protest group called "Students against Facebook News Feed" the day after he rolled out the feature, and ever since, he's been very careful with changes to his social network. You know, except for that whole Beacon thing that ruined Christmas. Still. Fits and starts, people. Fits and starts. Here are screenshots of Facebook's new profile format. If they don't cause riots, Facebook flack Meredith Chin says the new profiles will come out sometime this spring.

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