I’ve never used AdWords myself, but Arment Dietrich uses paid search for clients and I have helped along the way.  What I learned today is, before using AdWords, it’s important to understand how they are measured so you can have the best success.  To do that you need to understand how the quality score comes into play.

Your Google AdWord quality score is just an approximate of how Google expects your keyword to perform.  Three things come into account here:

1. Click-though rate

2. Relevancy

3. Landing page

Once you understand how quality is measured, then you can focus on improving the score.  Seems simple, right?

They plugged a site where you can get more info.  I haven’t checked it out yet, but if you’re interested, you can find ways to improve your score here:

http://www.google.com/adwords/adsquality