DPers, I'm considering setting up a system that would allow webmasters to exchange advertising for free. I want to see if others are interested in using a system like this, and get ideas. How the system will work: The system will not be based on direct exchanges. Instead it will use a points system. You can buy and sell advertising using points. When you first create an account, you'll get some points to start with. You can earn more points by selling advertising. You can then use your points to buy advertising for your site. The system would support buying and selling email advertisements, text links, sponsored blog posts, banner ad space, etc. etc. The system would be completely free to use. There would be a small "tax" on each transaction to cover development, admin, and marketing of the system. Would you be interested in using a system like this? Any ideas or suggestions? Thanks, Adam