Steps to take to link your products to appear on the PriceSpy website:
Go to E-commerce, then scroll down to the PriceSpy plugin.
Click on the + Button
Click Add Plugin
Right click on the link to the product feed in the next screen and Copy Link Address.
You can follow the link to PriceSpy to sign up and in the box where it asks for the URL to product feed, paste the link into this box.