Orkut Is and internet social network service ran by Google. It got the name from the creator and Google employee Orkut Buyukkokten . It helps new users meet new friends and keep existing relationships. It is like Face book, Friendster, and My space. He has created this site so users can’t sign up unless they have an invitation.
Is a business-oriented networking site, it’s almost like a social networking site, mainly used for professional networking. There are more than 16 million registered users.
Is an social networking service. This site was found in Mountain View, California, United States, in march 2002. The Friendster web site is based on Circle of Friends social network. There are approximately 50 million users.
Plaxo is an online address book service, founded by Napster.
It provides automatic updating of contact information and users and their contacts store their information on Plaxo’s servers.
Ning is a company co-founded by Marc Andreessen and Gina Bianchini.
It launched its service in October 2005.
Ning is an online platform for creating social websites and social networks.
It is a social network trying to compete with MySpace and Facebook
It appeals users who want to create networks around peoples interests and technical skills.
?? Social network analysis views social relationships in terms of nodes and ties. Nodes are the individual actors within the networks, and ties are the relationships between the actors. There can be many kinds of ties between the nodes. Research in a number of academic fields has shown that social networks operate on many levels, from families up to the level of nations, and play a critical role in determining the way problems are solved, organizations are run, and the degree to which individuals succeed in achieving their goals. In its simplest form, a social network is a map of all of the relevant ties between the nodes being studied. The network can also be used to determine the social capital of individual actors. These concepts are often displayed in a social network diagram, where nodes are the points and ties are the lines. http:// en.wikipedia.org/wiki/Social_network
It is a social networking site that was open on February 4, 2004. The Founder of this site is Mark Zuckerberg who is a member of Harvard. Since September 11, 2006, anyone by the age of 13 and older are able to sign up to join this site. Facebook is ranked the number one site for photos in the United States, ahead of the site Flickr, with 60 million photos uploaded weekly.