Charging for Ads by Usergroup & credits
It would be nice to charge a fee for placing an Ad to specific usergroups. It would be great if you could give 3 free ads to all users, and then charge them an ad placement fee once they pass this number. You would use usergroups to set the various amounts and the number of free ads.
Right Now I can only charge a fee based on the Catagory.
It would also be nice to have a credits system in place too. Users could pay per ad... OR... they could buy 25 credits at a reduced rate. This gets them to spend more because everytime they would pay for one ad they would have to decide -- "do I want to pay $2 for this ad or pay $10 for 12 ads?"