Most our business comes through different vendors and suppliers, and needless to say, when their systems experience downtimes and high latency, we don't sell!.. Thus no ROI from our PPC campaigns.
What I am looking for is a (preferably Linux/UNIX based) management tool for Overture/G Adwords campaigns, so that we can tune budgets, turn campaigns on/off, add remove keywords etc. etc. based on different criteria such as vendor response time etc. We have plenty of data to correlate vendor latency to sales volumes, so this should be a faily easy task if there is a good tool to accomplish this. Of course, in the worst case a Windows based tool would be better than nothing. Also, a web based tool that could be scripted to specification would also work, but be less desirable..
Regardless, if no such tool exists and there are interested parties out there I am willing to contribute on developing such a tool.
Do you send traffic to your vendors? I don't see how that problem would come up otherwise.
I know that Google has an API that you can configure to do just about anything. Have your coders take a look at that and see if that will solve your problem. Yahoo! I don't know about though. Good luck.