To my view facebook is the best...........

My choice is first fr Facebook and then go with Google+. Twitter is also good along with Digg.

I think Facebook is the best.

Facebook is best for business. , see my Facebook Group for Business Blog.

There are lot of Social Networking sites available.

i think Facebook and Google+ is the best.

Facebook , digg , twitter is the best social networking sites

Facebook of course :)

Facebook , Twitter , Digg is the best one

Facebook , twitter , Linkedin

Facebook , twitter , Digg are the best social networking sites

Facebook is most popular social networking site. Because it is used by majority and the results are also very impressive.

Facebook is the best social networking site that works more on business.

All of the social networking sites are helpful in your business especially when you have lots of followers and subscribers like the one on this official source. social signals are also the best way to get noticed by search engines!

Up to my knowledge, I think it's Twitter because i got mostly traffic from Twitter.