I like seeing today's stats on Google Adwords, but find I get a better click thru rate with the Overture/Yahoo network. I also wish Google offered keyword research like the Overture Inventory. Their predictive tool does not tell you how many times a term or phrase has been searched on.

We still show up well in Google free search, but only time will tell if that service will remain free.

I am a proponent of using both networks because where Google gives access to AOL users, overture gives access to Yahoo users.