Facebook, Twitter, StumbleUpon, Google+, Tumblr, flikr, pinterest, youmob, youtube, apsense etc many more websites to generate quality traffic on site.

I am generally using following social networks:
Facebook
Pinterest
Facebook
Twitter
Linkedin

I like Instagram , which is a most popular social media site and also help in promoting the business. Instagram have different tools which help in social media analytics , so that you can check your followers & also track them

Facebook, Twitter, Pintrest and others

There are many social networking sites are available in web world, but I am using Facebook, Twitter & StumbleUpon.

Facebook and LinkedIn

FB, Twitter, G+, Tumblr, StumbleUpon, LinkedIn, Pinterest.. etc...

Facebook and Twitter

I only use Facebook and Twitter for social media websites

Often Twitter, Rarely Facebook.

If you read this article, you're going to understand which social media sites are best..
get real instagram followers

I use facebook,twitter and linkedin and i find the smartest pepole over quora

We use the Google+, Pinterest, LinkedIn Twitter, Instagram, Plurk etc.

fb and twitter i use mostly

Facebook and twitter