eBay Sellers:
Use links on your pages to sell your items: http://eB.Am/YourUsername/ or eg. if you want to sell them your green stuff use
http://eB.Am/YourUsername/green
and Add a share button in your eBay listings Use the following code
This will get the item number from the referrer info which is available on most browsers, but you can also use:
replacing youritemnumber with your eBay listing item number.
or, if you're feeling adventurous, use this javascript code to do it for you