Social Networking Sites

Social networking sites

A social networking service is an online service, platform, or site that focuses on building and reflecting of social networks or social relations among people, who, for example, share interests and/or activities. A social network service consists of a representation of each user (often a profile), his/her social links, and a variety of additional services. Most social network services are web-based and provide means for users to interact over the Internet, such as e-mail and instant messaging. Online community services are sometimes considered as a social network service, though in a broader sense, social network service usually means an individual-centered service whereas community services are group-centered. Social networking sites allow users to share ideas, activities, events, and interests within their individual networks.

The main types of social networking services are those that contain category places (such as former school year or classmates), means to connect with friends (usually with self-description pages), and a recommendation system linked to trust. Popular methods now combine many of these, with Facebook and Twitter widely used worldwide, Nexopia (mostly in Canada); Bebo, VKontakte, Hi5, Hyves (mostly in The Netherlands), Draugiem.lv (mostly in Latvia), StudiVZ (mostly in Germany), iWiW (mostly in Hungary), Tuenti (mostly in Spain), Nasza-Klasa (mostly in Poland), Decayenne, Tagged, XING, Badoo and Skyrock in parts of Europe; Orkut and Hi5 in South America and Central America; and Mixi, Multiply, Orkut, Wretch, renren and Cyworld in Asia and the Pacific Islands and Facebook, Twitter, LinkedIn and Google+ are very popular in India.

There have been attempts to standardize these services to avoid the need to duplicate entries of friends and interests (see the FOAF standard and the Open Source Initiative). A 2011 survey found that 47% of American adults use a social network.

top 10 social networking sites

Top 10 Social networking sites -

1. Facebook

2. Twitter

3. LinkedIn

4. YouTube

5. Hi5

6. Skyrock

7. Friendster

8. 51.com

9. Orkut

10. MySpace

1. Facebook

Facebook

Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc. As of July 2011, Facebook has more than 800 million active users. Users must register before using the site, after which they 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, and categorize their friends into lists such as "People From Work" or "Close Friends". The name of the service stems from the colloquial name for the book given to students at the start of the academic year by some university administrations in the United States to help students get to know each other. Facebook allows any users who declare themselves to be at least 13 years old to become registered users of the site.

Facebook was founded by Mark Zuckerberg with his college roommates and fellow computer science students Eduardo Saverin, Dustin Moskovitz and Chris Hughes. The Web site'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 eventually to anyone aged 13 and over. However, based on ConsumersReports.org on May 2011, there are 7.5 million children under 13 with accounts, violating the site's terms of service.

A January 2009 Compete.com study ranked Facebook as the most used social networking service by worldwide monthly active users, followed by MySpace. Weekly included the site 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 138.9 million monthly unique U.S. visitors in May 2011. According to Social Media Today, in April 2010 an estimated 41.6% of the U.S. population had a Facebook account. Nevertheless, Facebook's market growth started to stall in some regions, with the site losing 7 million active users in the United States and Canada in May 2011.

2. Twitter

Twitter

Twitter is an online social networking and microblogging service that enables its users to send and read text-based posts of up to 140 characters, informally known as "tweets".

Twitter was created in March 2006 by Jack Dorsey and launched that July. Twitter rapidly gained worldwide popularity, with over 300 million users as of 2011, generating over 300 million tweets and handling over 1.6 billion search queries per day. It is sometimes described as "the SMS of the Internet."

Twitter Inc., the company that operates the service and associated website, is based in San Francisco, with additional servers and offices in San Antonio, Boston, and New York City.

3.LinkedIn

LinkedIn

LinkedIn is a business-related social networking site. Founded in December 2002 and launched in May 2003, it is mainly used for professional networking. As of 4 August 2011, LinkedIn reports more than 120 million registered users in more than 200 countries and territories. The site is available in English, French, German, Italian, Portuguese, Spanish, Romanian, Russian, Turkish and Japanese. Quantcast reports LinkedIn has 21.4 million monthly unique U.S. visitors and 47.6 million globally. In June 2011, LinkedIn had 33.9 million unique visitors, up 63 percent from a year earlier and surpassing My Space. LinkedIn filed for an initial public offering in January 2011 and traded its first shares on May 19, 2011, under the NYSE symbol "LNKD".

4. YouTube

YouTube

YouTube is a video-sharing website, created by three former PayPal employees in February 2005, on which users can upload, view and share videos.

The company is based in San Bruno, California, and uses Adobe Flash Video and HTML5 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 including CBS, BBC, VEVO, Hulu, 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 years old and older.

In November 2006, YouTube, LLC was bought by Google Inc. for US$1.65 billion, and now operates as a subsidiary of Google.

5. Hi5

Hi5

hi5 is a social networking website based in San Francisco, California. The company was founded in 2003 by Ramu Yalamanchi. By 2008, comScore reported that hi5 had become the third most popular social networking site in terms of monthly unique visitors.

Bill Gossman was appointed CEO in April 2009, and since that time, hi5 has refocused itself as a social gaming platform and opened itself to new game developers.. Gaming industry veteran Alex St. John joined the company as President and CTO in November 2009., and in early 2010, hi5 acquired social gaming company Big Six. The company raised $20 million in series A venture capital from Mohr Davidow Ventures, as well as $15 million in venture debt, in 2007, and announced it had raised $3 million convertible note from existing investor Mohr Davidow, bringing the funding up to $38 million. Quantcast reports hi5 has 2.7 million monthly US visitors and 46.1 million global visitors. Software-industry veteran Karen Richardson has served as chairwoman of the company's board since 2008.