Here is another example of a blog being used in conjunction with eBay to sell items. I built this blog McCree's Antique Blog for a friend of mine to help him sell his items and to get more exposure for his eBay store; McCree's Antique Store.
Feel free to send me an email if you have any questions about how to do this or just watch along as we make more entries into his online store and update his blog.
I hope my readers get some ideas from this one. The advantages of having a blog that mirrors your eBay store are;
1. You get better search results. People who are searching for your product can find it through your blog.
2. It allows you to focus on what it is you sell. You can do extended write ups on your items and use different key words that you did not use in your eBay ad.
3. You can have as many photographs as you want. This is one of the neat things about having a blog, you can have unlimited photos for your item. There can be as many different pictures as there are post that you can think up.
4. You can also use your blog as a platform for affiliate marketing that supports the items you sell. You can join eBay's affiliate marketing program and post these links to your blog. There by having a secondary income stream for your store.