Linking your eBay seller account to your personal Facebook account is a good way to drive more traffic to your listings. When link these two services your eBay listings will automatically be added to the news feed that your Facebook friends see. This way you can conveniently share what you are selling and have the ability to expand your customer base each time you offer a new product for sale.
Log in to your eBay account and click on the "My eBay" link at the top of the page.
Click the "Account" tab and then click the "Site Preferences" link that appears in the left-hand menu.
Locate the "Share your eBay items with friends" title in the list that displays and then click the "Show" link to the right. Click the "Facebook" option and then follow the prompts to log in to your Facebook account.
Review the "Request for Permission" screen that appears and then click the "Allow" button to activate the link between your eBay and Facebook accounts. This link automatically posts items on your eBay selling feed, such as status messages and photos, to your Facebook wall and news feed.