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Open Diary was an online diary community, an early example of social networking software. It was founded on October 22, 1997. Open Diary was shut down on February 7, 2014.
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Xanga is a website that hosts weblogs, photoblogs, and social networking profiles.
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Friendster was a social gaming site based in Kuala Lumpur, Malaysia. It was previously a social networking service website. It is considered one of the original and even the "grandfather" of social networks.
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LinkedIn is a business-oriented social networking service. It was founded in December 2002 and launched on May 5, 2003, it is mainly used for professional networking.
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MySpace is a social networking website offering an interactive, user-submitted network of friends, personal profiles, blogs, groups, photos, music, and videos.
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Facebook is an online social networking service headquartered in Menlo Park, California. Its website was launched on February 4, 2004, by Mark Zuckerberg with his Harvard College roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.
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YouTube is a video-sharing website headquartered in San Bruno, California, United States.
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Reddit is an entertainment, social networking, and news website where registered community members can submit content, such as text posts or direct links, making it essentially an online bulletin board system.
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Twitter is an online social networking service that enables users to send and read short 140-character messages called "tweets".
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Tumblr is a microblogging platform and social networking website founded by David Karp and owned by Yahoo! Inc. The service allows users to post multimedia and other content to a short-form blog. Users can follow other users' blogs, as well as make their blogs private.
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Pinterest is a web and mobile application company, which operates an eponymous photo sharing website.
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Instagram is an online mobile photo-sharing, video-sharing and social networking service that enables its users to take pictures and videos, and share them on a variety of social networking platforms, such as Facebook, Twitter, Tumblr and Flickr.
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Google+ is an interest-based social network that is owned and operated by Google Inc.
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Snapchat is a video messaging application.
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Vine is a short-form video sharing service where users can share six second-long looping video clips.