The Google blog is coming clean on the various ad formats they have, outside the standard text ads. Like I did over at Search Engine Land, I will post the various ad formats below.
Google Video AdWords Ads:
Google AdWords Sitelinks:
Google AdWords Local Ads:
Google AdWords Local Ads:
Google AdWords Product Ads:
Google AdWords Comparison Ads:
Forum discussion at Sphinn and WebmasterWorld.