Prof;
Why don’t you say which companies you tried? Why the secrecy?
I recently had a campaign with perfecttraffic.com which do a $150 for 50,000 gambling hits. I kind of figured that it might be a bit dodgy so I covered myself by sticking an adriches per impression banner on the same page (a casino guide), which paid for the campaign.
I thought the results seemed ok but it was difficult to tell because I have traffic coming from other sources. They have said that they can host the page for me which will enable me to see how many clicks-throughs the page generates, but I thought I would ask on here to see if anyone has any experience with these guys, or if they were one of the ones you tried.
Cheers.