Best Websites
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YouTube is a video-sharing website on which users can upload, share, and view videos, created by three former PayPal employees in February 2005.
The company is based in San Bruno, California, and uses Adobe Flash Video technology to display a wide variety of user-generated video content, including movie clips, TV clips, and music videos, as well as amateur content such as video blogging and short original videos. Most of the content on YouTube has been uploaded by individuals, although media corporations includingCBS, BBC, Vevo and other organizations offer some of their material via the site, as part of the YouTube partnership program.
Unregistered users may watch videos, and registered users may upload an unlimited number of videos. Videos that are considered to contain potentially offensive content are available only to registered users 18 and older. In November 2006, YouTube, LLC was bought by Google Inc. for $1.65 billion, and now operates as a subsidiary of Google.
The Founders
YouTube was founded by Chad Hurley, Steve Chen, and Jawed Karim
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Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program. The company was founded by Larry Page and Sergey Brin, often dubbed the "Google Guys", while the two were attending Stanford University as Ph.D. candidates. It was first incorporated as a privately held company on September 4, 1998, and its initial public offering followed on August 19, 2004. At that time Larry Page, Sergey Brin, and Eric Schmidt agreed to work together at Google for twenty years, until the year 2024. The company's stated mission from the outset was "to organize the world's information and make it universally accessible and useful", and the company's unofficial slogan – coined by Google engineerPaul Buchheit – is "Don't be evil". In 2006, the company moved to their currentheadquarters in Mountain View, California.
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Wikipedia (
/ˌwɪkɪˈpiːdi.ə/ or /ˌwɪkiˈpiːdi.ə/ WIK-i-PEE-dee-ə) is a free, web-based, collaborative,multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Its 17 million articles (over 3.5 million in English) have been written collaboratively by volunteers around the world, and almost all of its articles can be edited by anyone with access to the site Wikipedia was launched in 2001 by Jimmy Wales and Larry Sanger and has become the largest and most popular general reference work on the Internet, ranking around seventh among all websites on Alexa and having 365 million readers.
/ˌwɪkThe name Wikipedia was coined by Larry Sanger[10] and is a portmanteau of wiki (a technology for creating collaborative websites, from the Hawaiian word wiki, meaning "quick") andencyclopedia.
Although the policies of Wikipedia strongly espouse verifiability and a neutral point of view, critics of Wikipedia accuse it of systemic bias and inconsistencies (including undue weight given to popular culture) and allege that it favors consensus over credentials in its editorial processes. Its reliability and accuracy are also targeted. Other criticisms center on its susceptibility to vandalism and the addition of spurious or unverified information, though scholarly work suggests that vandalism is generally short-lived, and an investigation inNature found that the science articles they compared came close to the level of accuracy of Encyclopædia Britannica and had a similar rate of "serious errors".
Wikipedia's departure from the expert-driven style of the encyclopedia building mode and the large presence of unacademic content have been noted several times. When Time magazine recognized You as its Person of the Year for 2006, acknowledging the accelerating success of online collaboration and interaction by millions of users around the world, it cited Wikipedia as one of several examples of Web 2.0 services, along with YouTube, MySpace, and Facebook. Some noted the importance of Wikipedia not only as an encyclopedic reference but also as a frequently updated news resource because of how quickly articles about recent events appear. Students have been assigned to write Wikipedia articles as an exercise in clearly and succinctly explaining difficult concepts to an uninitiated audience.
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Facebook (stylized facebook) is a social network service and website launched in February 2004 that is operated and privately owned by Facebook, Inc. As of January 2011, Facebook has more than 600 million active users. Users may create a personal profile, add other users as friends and exchange messages, including automatic notifications when they update their profile. Additionally, users may join common interest user groups, organized by workplace, school, or college, or other characteristics. The name of the service stems from the colloquial name for the book given to students at the start of the academic year by university administrations in the US with the intention of helping students to get to know each other better. Facebook allows anyone who declares themselves to be at least 13 years old to become a registered user of the website.
Facebook was founded by Mark Zuckerberg with his college roommates and fellow computer science students Eduardo Saverin, Dustin Moskovitz and Chris Hughes. The website's membership was initially limited by the founders to Harvard students, but was expanded to other colleges in the Boston area, the Ivy League, and Stanford University. It gradually added support for students at various other universities before opening to high school students, and, finally, to anyone aged 13 and over.
A January 2009 Compete.com study ranked Facebook as the most used social network serviceby worldwide monthly active users, followed by MySpace. Entertainment Weekly put it on its end-of-the-decade "best-of" list, saying, "How on earth did we stalk our exes, remember our co-workers' birthdays, bug our friends, and play a rousing game of Scrabulous before Facebook?" Quantcast estimates Facebook has 135.1 million monthly unique U.S. visitors in October 2010. According to Social Media Today as of April 2010, it is estimated that 41.6% of the U.S. population has a Facebook account.
5.
Myspace, stylized My_____ and previously MySpace, is a social networking website. Its headquarters are in Beverly Hills, California where it shares an office building with its immediate owner, News Corp. Digital Media, owned by News Corporation. Myspace became the most popular social networking site in the United States in June 2006. According tocomScore, Myspace was overtaken internationally by its main competitor, Facebook, in April 2008, based on monthly unique visitors. Myspace employs 1,000 employees, after laying off 30% of its workforce in June 2009; the company does not disclose revenues or profits separately from News Corporation. Quantcast estimates MySpace's monthly U.S. unique visitors at 43.2 million.
