(UFRGS) Facebook is the world’s largest social network, with 800 million users worldwide as of September 2011.

More than any other company, it has defined what ¹…….. see as the “social” era of the Internet, in which connections made among ⁹people ⁴replace ⁷algorithm-driven searches. And ⁸its ⁵policies, more than any others, seem to be driving the definition of ¹⁴privacy in this new age.
Every day, Facebook users comment or press the “like” button more than 2 billion times and upload more than 250 million photos. The McKinsey Global Institute has estimated that the network’s users post 30 billion pieces of content ²…….. month.
The company, founded in 2004 by a Harvard ¹⁵sophomore, Mark Zuckerberg, began life ¹⁶catering first to Harvard students and then to all high school and college students. It has since evolved into a broadly popular online destination used by teenagers and adults of all ages. ¹⁹In country after country, Facebook has cemented itself as the leader, often displacing other social networks.

It is ³…….. surprise that ¹¹Facebook has become one of the titans of the Internet, challenging even Google with ¹⁰its vision of a Web tied together by personal relationships and recommendations, rather than by search algorithms. In a major expansion, Facebook has spread itself across other Web sites by offering members the chance to “Like” something - share it with their network – without leaving the Web page they are on.

At the Facebook ²⁰developer ⁶conference in September, ²¹the company announced the release of a ¹³product called Timeline, ¹²which offers a ²²highly visual view of a user’s Facebook profile and organizes content into photos, events and apps, all based on a ¹⁷timeline view that stretches back to the beginning of a user’s time on Facebook. Timeline is designed to work on ¹⁸mobile devices, too.

Adaptado de: WYLD, Adrian. Facebook. Disponível em: . Acesso em 01 dez. 2011.

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The passive version of the sentence [...] the company announced the release of product called Timeline (ref. 21) is the sentence [...] the release of a product called Timeline …….. by the company.