I'm selling banner advertising on http://www.proxyfreelist.com. The proxy topsite is a PR4 and it receives roughly 1000 uniques a day. It mainly gets it traffic from google for the key phrase "unblock websites" which is 3rd on google. It sends out a total of 400 hits to proxy websites each day. By advertising a banner, you'll surely have an advantage. There will be 3 banner's being rotated. Pricing is $20/month each and the banner will be featured just under the first position. I'm also selling text links which will cost 10$/month and will feature just below the navigation menu above the AdSense. Will only be selling 5-6 of these. PayPal Only. PM me if your interested!