Do you got a forum or a blog and need some more visitors? Then you should check out this:
Xavier Banner Exchange is currently offering 5 000 banner impressions to everyone joining and you get an additional 10% of the credits anyone you refer earn! This means that you can get a lot of free advertising targeted to forums and blogs. One of the nice features is that the exchange is using 125×125 banners as standard which is the most common size for blogs. Most blogs are already pre-made with 125×125 spaces for ads so the exchange code is easy to fit into your current design.
If you have a blog you can write a review of the banner exchange and get an additional reward of 3 000 banner impressions just for writing the review.
The standard exchange ratio is 3:2 which means that for every 3 visitors clicking on the ads on your site you get 2 visitors to your site. But that's not all because they use sliding ratios which means that the higher click rate you have on your web site the better exchange ratio they'll give you next month.
By placing the exchange code at the top of your web site you increase the chances to get a higher exchange ratio.