I purchased some PPC advertising at Clicksor but sadly the traffic was waste of money and bandwidth. I didn't even get a sale or newsletter signup. The traffic was also from suspicious proxy IPs, has anyone encountered the same problem?
If I am not mistaking, Clicksor is owned by Yesadvertising, who used to own a search engine called yesup.com and I advertised with them, all traffic was incentive based and I didnt even got a single sale. I think its same with Clicksor.