Social media sites like facebook, twitter, google+ are the effective sites which can increase traffic to your site.

Twitter, facebook, google+, Instagram are good for increasing website traffic.
Post awesome content on different social media to generate more social signals.

Ya definitely face book ,twitter and google plus are best.

you can use these most popular social sites to generate traffic to your site as facebook, google+, linked in, Pinterest, twitter etc.

Twiiter, G+ , facebook

Facebook and google+

The best social media sites are:
1. Facebook
2. LinkedIn
3. Twitter
4. Google Plus
5. Pinterest

facebook and google + is the best for creating more traffic to your site

Facebook, Google+ and reddit

I would say it depends on where you have the most followers?

I think Twitter, Pinterest is one one of the best platform for get more traffic on site. I personally like twitter most.

I have tried different social sites to generate traffic to my site among those Facebook was most effective. So my vote goes to Facebook.

For creating more traffic Facebook , Google+ are best social sites.

Facebook, Twitter, Google+, best site.

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Facebook is the best website to increase traffic to your website.Apart from if your website is related to education or professional services then linked also plays good role to increase traffic.