Google Shopping feed is included
Most webshops today sell via Google Shopping. These are the ads that appear in Google. Typically when you search for a product.
Google gets the information about these products by retrieving the information daily from a feed in your webshop. This feed contains information such as which products you have in stock, which image you want to show and what it costs.
You can also add information such as sizes, GTIN, color and whether the item is discounted.
The Google Shopping feed is of course included in your Shoporama shop.