Where can we find those quality scores? Honestly, I think I don't use that one! or maybe its pointing to some changes that google do on its algorithm! hmm!!! source: http://blog.searchenginewatch.com/blog/070920-133706
Maybe in order for SEO to explore what's their algorithm is... Not letting Google announce some tips on how to...
Keep in mind that this announcement refers to the Quality Score system for AdWords, not web search. The original posting from Google is here.
When viewing the keywords tab of your campaign, click the "customize columns" link and show quality score.