I have used many social networking website. I think Facebook and Twitter both are the most popular social networking website and also Linkdin, MySpace etc.
I am actively participating on Facebook, Google+, myspace and twitter.
http://www.medicaltourism-india.com offers medical tourism services for offshore customers | [url="http://www.crosscountrywebservices.com"] a Webdesign Company India [/url]
Every most popular Social networking websites are very much effective to get huge traffic. We give first preference to Facebook, Twitter, Google Plus, LinkedIn and Pinterest.
My favorite social networking websites are : Facebook and Twitter. Facebook and Twitter are good social networking websites to promote business these days.