A banner exchange is a group of web sites that get together to advertise each others websites. Each member has a space on their own web site to display a banner ad. Each time the page is viewed , a banner ad for one of the member is displayed.
What is the cost?
It's FREE.
How does it works?
You copy and paste some HTML code into HTML code of your wed page.Each time your page displays a banner, you earn one display credit; each time your banner is displayed on
another web site, one display credit is redeemed.