Jason Cunliffe writes:

Looking for an e-commerce tool to use for a Zope-based site for artists to share, display and sell 'net art' and more. Also to allow sponsors to do just that. There is a (low traffic) mailing list especially for Z-Commerce (to be found via zope.org). Look into its archives. You will find a thread that discusses 2 or 3 approaches.

Dieter