Well the title says it all...my web hosting review site was getting hit with pretty high priced clicks from around the world that were not converting. Turned out to be coming from overture so I stopped the campaign. I can't believe you can't direct traffic to USA or at least North America....this may be the last straw for me with overture....this on top of changing my frigging ad titles (in at least one case to a completely different subject !) is just too much.
you need to check out a few things. 1. did you specified the region/country while setting up the campain 2. were the timing you run the campain on were appropriate. in both the cases if you just slip even a few inch, you are suppose to encounter a high number of fraudal clicks. and neverexpect any conversions from them.