It's the simple act of expanding the number of people you know by meeting your friends' friends, their friends' friends and so on.
In fact, many of us today use Twitter and Facebook to promote our existing and upcoming businesses.
You can update the profile with your education and job details and a summary.
Additionally, you can also give and receive recommendations from co-workers and bosses.
Once the friendship is confirmed all the people in your friends' Friend Space become part of your network.
In that sense, everyone on My Space is in your Extended Network.
The site lets you connect with old friends and make new ones using a unique user interface.
However, it went beyond just a one-way communication.
When you join My Space, the first step is to create a profile.
You then, invite friends to join there and search for your friends on already profiled on My Space these friends become your initial Friend Space.
There are more than 75 million professionals registered on Linked In. Bebo: In the United Kingdom, Bebo is the second best social network.
Bebo allows users to create social networking profiles for free.