You don't need one to add your listing. All you have to do is click the button to add your link (to your listing which you copy and paste from your shop) and it will automatically show.
Thank you to those who added their links - I sent it out on Twitter and Facebook. Looking at doing this once a week for added exposure for our items. Make sure to add your listing if you haven't already....Thanks again!
Thanks for all the additions to the Linkup ... today starts Saturday Shopper so make sure to stop over at http://hotpadhangout.blogspot.com/ and add a listing from your shop!