I just heard about a new site called NetSpray.com. They are another idea for moving away from Ebay.
Their system makes it easy to create a widget and the code you need to display it. Your item(s) with descriptions, prices, etc. live on their servers. You can insert the widget anyplace where you have access. Your own site, social media sites, etc.
For example, here is the first widget I created for an item we are planning to sell.
