I just added a traffic trade script to the top of
http://www.stileproject.com -- 95% of the sites sending in traffic are getting at LEAST 150% of whatever they send in back. It updates the stats every minute and resets daily at midnight. Some current traders are teeniefiles, judsmovies, privatevoyeur... lots of great sites ;-)
Add your site if you're interested. I'm sure we can increase each others traffic!