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The use of Twitter by celebrities and politicians has become an important factor both for Twitter itself and for the celebrity users. As with many other social networking WWW sites, the postings and pictures by celebrity users attracts people to the site, which increases opportunity for advertising. To this end, Twitter has provided two facilities to its high profile users. The first is the verified account. Introduced in June 2009, the verified account system provides Twitter readers with a means to distinguish genuine accountholders from impostors. A symbol displayed against the account name indicates that Twitter has taken steps to ensure that the account has the approval of the person whom it is claimed to be, or represent. However, the public signup page for obtaining verified accounts was discontinued in 2010, with Twitter explaining that the volume of requests for verified accounts had exceeded its ability to cope; and nowadays Twitter determines itself whom to approach about verified accounts, limiting them to "highly sought after users", "business partners", and "individuals at high risk of impersonation". Business partners include those who advertise using Twitter, although it is not clearly spelled out in the material that Twitter provides to its business partners when and whether they might qualify for having verified account status. Secondly, Twitter attempts to work with celebrity and media public relations staff to encourage them to make use of Twitter in their advertising and publicity campaigns, encouraging them to use Twitter in their promotional campaigns, and providing support and analysis services to determine what worked, what created "buzz", and what did not. == Celebrity entertainers, models and sportspeople == Celebrities use Twitter to engage with their fans. Ashton Kutcher and Stephen Fry do this, for examples. Kevin Rose, the founder of Digg, was one of the first celebrities on Twitter. In 2009, he talked about how one can use one's Twitter fame as a form of cultural capital that can be leveraged. However, for celebrity users Twitter has proven to be a double-edged sword. Along with the laudatory comments from fans come hostile attacks from anonymous people; fan goodwill and even career opportunities can be lost through tweets; and several celebrities (Ashton Kutcher over a tweet about Joe Paterno, Courtney Love, and Chris Brown) have encountered trouble (in Love's case, sued) because of things that they have said on Twitter. Many celebrities do not actually maintain their own accounts; rather, the accounts are maintained by their publicists. The most popular United Kingdom celebrities on Twitter come from television with people like Stephen Fry and Jonathan Ross being amongst the most popular British celebrities on the site. Fry's success on Twitter is credited with being the same person on Twitter that he is off Twitter. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Use of Twitter by public figures」の詳細全文を読む スポンサード リンク
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