I disagree somewhat. Buying ads on google's search engine makes a lot of sense (for us), as google closes the loop from impression to click to sale (ads served

I disagree somewhat. Buying ads on google's search engine makes a lot of sense (for us), as google closes the loop from impression to click to sale (ads served to places where sales occur, keyword bids adjusted automatically based on sales). For my clients, google adwords adverts typically result in 100x-400x sales vs ad spend. A good deal for all involved.