We are excited to announce a new advertising format that will help you use your data feed to get even more traffic from Google Product Search. This new format is based on the popular product extensions on Google.com, with a slight difference: on Product Search, users will see your products and prices without having to click on a “plusbox” to expand the ad.
These ads are a great opportunity to market the breadth of your product catalog and highlight any promotional messages directly to conversion-ready shoppers on Google Product Search. To take advantage of this format, make sure your product extensions ad campaigns are being served on “search partner” sites. If you’re not already an AdWords advertiser, sign up today.
Google Merchant Blog