Maybe he is thinking you could provide an XML feed of items that are up for sale. For instance create a simple RSS feed that a reader like SharpReader could connect to. It would be trivial to do since you will have a database with all the auction information stored.
http://developer.ebay.com/xml/
that link shows the developer section for XMl on eBay. Might be some ideas in there. Or here:
http://developer.ebay.com/common/api
http://developer.ebay.com/xml/
that link shows the developer section for XMl on eBay. Might be some ideas in there. Or here:
http://developer.ebay.com/common/api