Google Commerce Search

Webmasters of commercial sites are invited to the service Commerce Search from Google for providing the description of their products, possibly with pictures.

A virtual online shop is so created and associated with the search engine to enable users to find products they need and where to buy them.

The search on Google Store is facilitated by many filters such as price range, product category or brand.

This allows the user to create its own comparison shopping... and dispense it with price comparison websites. Which are also less frequent in the results of the search engine Google these days.

The webmaster has to sign up to Google Commerce Search and go to Google Merchant Center to send descriptions of its products and images. The uploading can be done automatically with an API.
He can combine the service with AdWords to add advertising too.

This service is not free. The price depends on the number of items whose description is posted on the site.