I'm getting ready to (possibly) pitch a project here in town for a local bookseller. She wants to develop an inventorying system for her site backend that lets her add inventory records based on an ISBN number only.
Obviously I'm going to need some sort of hefty database or (more likely) some sort of subscription based web service (SOAP or RIFT I imagine) that makes a books-in-print database portable...
However despite many google searches, I can't seem to find anything even remotely affordable for a local bookstore - in fact nothing that isn't serious overkill.
The question is, have any of you or has someone you know developed a site for a local bookstore where they were able to employ ISBN searching from a web service.
Any points in the right direction as to where this data could be accessible would be greatly appreciated. Obviously as a for-profit entity, I don't expect it to be free, but I can't even find a commercial service.