Facebook's ever-changing privacy controls -- or seeming lack thereof -- have caused a ruckus among Web users lately. Making matters worse, media reports about youthful CEO Mark Zuckerberg imply that he's too cavalier about privacy; a recent piece in Wired complained that Facebook had "gone rogue."

However, given the realities of online business, many other companies' bosses could be holding their breath right now, hoping no one will accuse them of being lax in securing all the very personal data users give them about their tastes and activities. Amazon.com (Nasdaq: AMZN), Apple's (Nasdaq: AAPL) iTunes, FourSquare, are just a few of the companies to whom we regularly hand over big chunks of our online life. Think hard enough about its implications, and Google's (Nasdaq: GOOG) search logs and targeted advertising might induce a major-league shudder, too.

Will all the outrage over privacy cause repercussions for Internet companies? Will Web users get sick of companies "knowing too much"? Sound off in the comments box below.

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Alyce Lomax does not own shares of any of the companies mentioned. The Fool has a disclosure policy.