robotsdobetter - 6:55 am on Dec 11, 2005 (gmt 0)
I think it's best to stay away from Miva because all the fraud clicks you get. Customer support isn't great and sometimes it takes them forever to get back with you. I would recommend staying with Yahoo! and Google's PPC. However, you'll never know if it's good for you unless you try it, so give it a shot and see if it works out for you.