I run Google AdWords campaigns for clients all the time, and I have seen them work, much more often than not. Unfortunately, for many, these campaigns don’t work very well. Why? The chances are that the person setting up the campaign did not develop a quality sales funnel. Many businesses dive into Pay Per Click (PPC) by loading up a bunch of keywords they think are important, and that will send everyone to front page of their site. This is a recipe for failure.
Here is a post responding to E-bay saying brand PPC is not valuable. Yes, it is, and yes, PPC Ads Still Work.