GProduct Review Feed for Virtuemart
Creates an XML feed of your Virtuemart product reviews suitable for submission to Google Shopping, as described by Google here: https://support.google.com/merchants/answer/6171899?hl=en-GB
You can easily create a full feed in a few minutes. If your store has a large number of reviews the extension makes it a simple matter to create an incremental feed. You can also mark a review as spam, or deleted.