PPC Consultant Jim Banks - http://www.spadesmedia.com shows you important things your Adwords ads should have and how many advertisers are missing items like :
* Seller Reviews
* Google+ Integration
* Sitelinks
* Suitable call to action
* Relevant and suitable ad copy for the search term
Jim also looks at some of the underlying technologies being used by the advertisers.
You can find Jim on Twitter - http://www.twitter.com/jimbanks or on Google+ at https://plus.google.com/100968476447404156498
