Top 10 social networking sites

Social networking sites are the services on-line available for the users to interact within each-other exchanging user generating contents. Here are some top 10 social networking sites till now.

1. Facebook (facebook.com)
Facebook is launched in February 2004. Till 2011 it has more than 750 million users.
Alexa Rank:2

2. Twitter (twitter.com)
People interact with a very simple text messages. It is launched in July 2006, rapidly gained popularity and now it has about 200 million active users.
Alexa Rank:9

3. Linked in (linkedin.com)
Linked is a social networking sites for professionals. Mainly it is the connection between professions. It allows you to put you profile as a resume. It is launched on May 2003. It reports more than 100 million professionals.
Alexa Rank:13

4. MySpace(myspace.com)
It was once the number 1 social networking and later it was overtaken by Facebook. It has 50 million users. It was launched on August 2003. Actually it is pioneer on social networking site.
Alexa Rank:88

5. Ning (ning.com)
Ning is an online platform for people, artists, brands, businesses and organizations to create their own custom social networks. It is launched in October 2005. Ning offers customers the ability to create a community website with a customized appearance and feel. As of June 2011, it has 65 million monthly unique visitors.
Alexa Rank:128

6. Tagged (tagged.com)
Tagged is a social networking site which suggests new people for members to meet based on shared interests. Tagged has 6.2 million monthly unique U.S. visits and 20.4 million globally. Its launched on 2004.
Alexa Rank:284

7. Orkut (orkut.com)
Orkut is a social networking website that is owned and operated by Google Inc. Orkut is not popular in the United States . The main user base for the orkut are from India and Brazil. It currently has over 66 million active users worldwide. Google has also launched another social networking site called Google Plus as beta (invite only). So still to see how it does on the long run.
Alexa Rank:106

8. hi5 (hi5.com)
hi5 was founded in 2003 and had become the third most popular social networking site in terms of monthly unique visitors by 2008. hi5 has 2.7 million monthly US visitors and 46.1 million global visitors. Its most popular for social gaming.
Alexa Rank:406

9. Meetup (meetup.com)
Meetup is an online social networking portal that facilitates offline group meetings in various localities around the world. Meetup allows members to find and join groups unified by a common interest, such as politics, books, games, movies, health, pets, careers or hobbies. Users enter their ZIP code (or their city outside the United States) and the topic they want to meet about, and the website helps them arrange a place and time to meet. Topic listings are also available for users who only enter a location.
Alexa Rank:472

10. Badoo (badoo.com)
Badoo is a multi-lingual social networking website. The site is most active in Latin America, Spain, Italy and France. It was given the lowest score in regards to privacy among 45 social networking sites examined. As of April 2011 it claims to have over 114 million registered users.
Alexa Rank:117

Source: en.wikipedia.org