Social networking websites are an online means that focuses on building and reflecting of social networks or social relations among people, moreover who share interests and/or activities. It consists of a representation of each user via profile, his/her social links, and a variety of additional services.

They help to find and connect with new people and old friends. More people are getting jobs from those websites. Nowadays, they have become one of the key means of advertisement.

Here is the list most popular social networking websites.

1. Facebook : http://www.facebook.com/

2. MySpace: http://www.myspace.com/

3. Twitter: http://www.twitter.com/

4. LinkedIn: http://www.linkedin.com/

5. Ning: http://www.ning.com/

6. Friendster: http://www.friendster.com/

7. Tagged:  http://www.tagged.com/

8. Netlog : http://www.netlog.com/

9. Meetup: http://www.meetup.com/

10. Multiply: http://www.multiply.com/

11. MyYearBook: http://www.myyearbook.com/

12. Bebo: http://www.bebo.com/

13. Xanga: http://www.xanga.com/

14. Care2: http://www.care2.com/

15. Classmates: http://www.classmates.com/