As some might already read, we've started making nice PDFs of Wikipedia articles at German Wikipedia. These are clearly meant for printing, and two (on Internet and Sweden) are already at the printers. Of course we can't print them for their own sake so I (TomK32) was busily enhancing the osCommerce webshop (GNU GPL) to be capable of more than one seller because the first two WikiReaders have different investors, editors and so on.
Once there was a shop at http://shop.wikipedia.org but eventually it was closed on January 2005.
Now I want your ideas on what to sell, what requirements a seller must comply, who manages the whole thing and of course (most important for now) legal issues.