Facebook 隐私大战(有声)
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Facebook在所有以服务于大学生为主要业务的网站中，拥有最多的用户，同时Facebook是美国排名第一的照片分享站点，网站对用户是免费的，其收入主要来自广告。在这里用户建立自己的档案页，其中包括照片和个人兴趣；用户之间可以进行公开或私下留言；用户还可以加入其他朋友的小组。2010年Facebook已拥有超过四亿用户，怎样保护用户的隐私、保护用户群的数量，让更多用户不会选择Quitfacebook，则是现在它所面临的一场考验。
This is the VOA Special English Economics Report.
People are supposed to be social on a social media site. But choosing to share information is not the same as having it shared for you. And that difference is at the center of debate over privacy on Facebook and other social networks.
A free service that makes money by advertising other sites has to find the right balance. It has to satisfy advertisers seeking information to target ads. But it also has to be careful, or people could start to worry about an invasion of privacy.
Facebook started as a site for college students to share interests and information. Today, it is the largest social media site -- more than four hundred million users. But lately it has faced a lot of criticism about its handling of privacy issues.
On Wednesday, Mark Zuckerberg, the twenty-six year old chief executive of Facebook, announced changes.
MARK ZUCKERBERG: "Today, we begin rolling out some new controls to make it simpler for you to control what you share on Facebook."
He said controlling personal information will be simpler than with the existing system of complex privacy settings.
Marc Rotenberg is president of the Electronic Privacy Information Center. He told "The Early Show" on CBS television that the changes may not be enough.
MARC ROTENBERG: "I don't think it's going to satisfy everybody. I think there are certainly a large number of Facebook users who basically have decided they really can't trust Facebook anymore."
A website called Quitfacebook Day has been urging people to leave this Monday.
Facebook is based in Palo Alto, California. The privately held company does not have to report earnings. But its revenue last year has been estimated at five hundred to six hundred fifty million dollars. This was mainly from selling ads aimed at users based on what they post on Facebook.
Facebook is not alone in being criticized over privacy. Google, the world leader in Web search, is in trouble for collecting information from unsecured wireless networks. This was done as specially equipped vehicles took pictures for the Google mapping feature called Street View. Google said it never meant to collect people's private information, like e-mails and passwords.
But officials in Hamburg, Germany, have launched a criminal investigation. And last week two American congressmen asked the Federal Trade Commission to see if Google broke any laws in the United States.
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