If you are looking for a site where you can advertise your site as well, you’ve got to check WebBannerz.com. This site will help you advertise, promote, generate new visitors and increase your rank with search engines. They have various ways on how to promote your site and how you can bring quality traffic into it.
It’s free for everybody. Just sign up for a free account and then add a site into their system. After it is being reviewed and approved, you can then edit your web pages and then insert the html code. To start receiving traffic, go to “manage credits” and add some credits to your campaign. You may have multiple website campaigns in a single account. There are 20 categories to choose from and there are many different exchange type; it could be an image, flash or simply a text only.
For every 2 visitors to your site you will get another visitor. It is not just a banner impression but a real visitor which means it guarantees you to a 50% increase on your traffic.

They also have Referral Programs which gives you a chance to receive credits that will be used in your campaigns for each new user you refer to their traffic exchange. So, it means you can receive unlimited traffic that you wanted for your site.