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.

This was a strategic move from the founder, therefore, Hi5 claims around 60 million members from more than 200 countries other than the US.

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.

Facebook's terms of use state that members must be at least 13 years old with valid email ID's.

After updating you're details, your Facebook profile is generated. My Space: On My Space, your social network starts growing from the first day.

And people looking to connect with other business-associated contacts usually move to sites like Linked In, but one need to understand that social media is beyond Twitter, Facebook, Linked In and Blogs.

After observing and running an analysis on hundreds of Social Networking sites I have listed down 40 most popular social networks across countries. Facebook: To access Facebook.com, you must create an account on the site which is free.

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.

S., Habbo social networks is very popular in places like the United Kingdom, Japan, Sweden, Spain, Italy, Finland and more. NING: Ning is the leading online platform for the world's organizers, activists and influencers to create social experiences that inspire action.

It helps you create a safe and secure place online for like-minded people.

Using Friendster, you can connect with friends and family, meet new people through the connections you already have, find people with similar interests, backgrounds or geographical locations, join groups by activity, school or interest, interact through message posts, games, blogs and application sharing, and share your details with the Internet community. Hi5: Hi5 shares many similarities with many social network sites; however, it introduces some twists that make it worthwhile for people who love trying out new and interesting online communities.