Facebook : Very Popular social networking that connects people with friends & much more..
Linkedin : Business oriented social networking site with fast growing community.
Ecademy : Online Business Networking & Global Networking Groups.
Zoominfo : People & company Profile Oriented Social Networking.
Myspace : Friend, Classmates Find People With large growing community.
Plaxo : Plaxo is an online address book and social networking service
Fastpitch : Social Network for Business Networking Professionals to market their business & much more activities.
Just go through participating in series of social networking, make your Profile & become more visible to web world.
Posted By: Sujit Kumar Lucky (SEO SMO Analyst)