Setting up Google Products in your store allows you to submit your products to Google's shopping feed. Google's shopping feed is a seperate application Google uses to publish product results from their search engine.
To use Google Products in your store, you will need a Google account. We recommend having a business Google account to manage your Google Product feed as well as other Google services such as Analytics.
After setting up your store to use Google Products and your store makes the initial upload, you will not have to take any other steps to keep your data up to date. Everytime a product is edited or added, it will be synced with your Google Product Feed.
Note: All inactive and deleted items are removed from your product feed.
Click here for tips on managing your product listings
You can view your entire product feed by using this URL: http://www.google.com/products?authorid=[your Account ID]