Google

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Google Web Search is a web search engine owned by Google Inc. and is the most-used search engine on the Web.Google receives several hundred million queries each day through its various services.

Youtube

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YouTube is a video-sharing website on which users can upload, share, and view videos.Unregistered users can watch the videos, while registered users are permitted to upload an unlimited number of videos. 

Twitter

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Twitter is a social networking and microblogging service that enables its users to send and read messages known as tweets. Tweets are text-based posts of up to 140 characters displayed on the author's profile page and delivered to the author's subscribers who are known asfollowers.

Facebook

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Facebook is a social utility that connects people with friends and others who work, study and live around them.Facebook helps you connect and share with the people in your life.

Yahoo

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Yahoo! provides a wide array of internet services that cater to most online activities. It operates the web portal http://www.yahoo.com which provides content including the latest news, entertainment, and sports information, and gives users quick access to other Yahoo! services like Yahoo! Mail, Yahoo! Maps, Yahoo! FinanceYahoo! Groups and Yahoo! Messenger. The majority of the product offerings are available globally in more than 20 languages.

Friendster

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Friendster is a social networking website.The service allows users to contact other members, maintain those contacts, and share online content and media with those contacts. The website is also used for dating and discovering new events, bands, and hobbies. Users may share videos, photos, messages and comments with other members via their profile and their network.