6 of 11
#6. Facebook
Privacy, shmivacy.
The world's biggest social network unveiled a host of changes in April that CEO Mark Zuckerberg touted as "transformative" and would "create instantly social and personalized experiences on the Web."

But there was a public outcry when it was revealed those changes allowed select third-party Web sites the ability to access and store some users' personal information. Two weeks later, Facebook announced it found a bug that made some instant message conversations visible to a user's entire list of friends.

Zuckerberg later apologized for not explaining Facebook's changes thoroughly enough, and for the company's lack of understanding of the public's privacy concerns. Facebook also launched easier-to-use privacy settings that made it clearer who could see each user's information. The fixes have helped calm some people down. Campaigns to get users to quit the social network failed. But users are clearly on edge about privacy, and Facebook likely can't afford another privacy mishap.


Last updated July 02 2010: 11:38 AM ET
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