I currently manually manage ~500 categories in Overture. Each category has close an average of 200 keywords (a total of 100K keywords!). I am looking to invest on an automated tool that would help me manage these bids on a "category" level rather than on a "keyword" level. I developed an internal tool that tells me how much money I can set my bids at. I am looking for a tool that can take in that data and update my "categories" in terms of the dollar amount & status (on or offline).
I would like to receive "unbiased" feedback from actual users, but from PPC management companies.