Google Merchant

[altonroot]

Originally Posted by kumar29

The Google Merchant Center is in large part what makes Google Product Search work; it’s a site that allows businesses to submit data product feeds, ensuring that users see up to date information.

Add more info to this. There are so many plugins available to generate product feed for Google. You can use those to update your products and its prices regularly. Apart from this, you can run Google shopping campaigns. Google shopping campaigns take products from Google merchant center. It is one of the best adword campaign it self as it reports highest conversion rate and less cost per click.