I have been trying to find a free solution that is for buying ads / ad placements on my wordpress site. I've tried the free ones from wordpress.org and the only one that works right is wp125, which is fine, but doesn't have a paypal feature that automates the buying and placing of ads. The only other viable option I have found is oiopublish, which sites like entrecard and other big sites use. I wouldn't mind spending the small amount they want, but I feel that there is probably a free solution that works just as good. I've found a few php scripts for paypal, but none of them seem focused on ad placements. I have an okay solution located here: http://www.roguedeals.com/reviews/advertise but it requires me to look at the code and do some work through wp-admin to get it on the site... again not a big deal but would be nice if there was a freebie that worked well. Any suggestions would be helpful for me. Thanks! -Eric