I run a tiny startup that lets you organize and track info about your comic book collection. I would like to add price data to the comics in the database. I think this would be a great feature for collectors to see how much their collection is worth.
I contacted http://comics.gpanalysis.com but they don't resell their data, and I contacted Overstreet price guide but they don't resell their data either.
The only option I can see is doing my own data mining on eBay and other online auction houses.
Does anyone know of any other place I can get this data?