There's no question that search engines provide a tremendous amount of traffic but now it seems that social networks are also proving to be the big traffic generators.

It seems that Facebook is driving the most repeat visitors according to a study conducted by online ad network, Chitika. We know that traffic is great, but traffic that returns is going to be even better for your conversion rate.

20% of all visitors from Facebook visited the site four or more times per week. Digg was second with slightly over 16%, followed by Yahoo, Google, Bing and Twitter respectively.

"While Google naturally wins in sheer numbers, if a website owner can drive a thousand people to their site via Google, or they can drive the same number via Facebook, Facebook seems to be the way to go for creating a loyal reader," says Chitika.

We suggest you take advantage of the sheer popularity of Facebook and spend time on the site in order to drive repeat traffic for your website.