there are a lot of them; it's a $24,000,000,000+ industry after all, ... i have not seen a privacy oriented comprehensive index of prepaid systems. that would be useful, if anyone has seen such a thing. On Wed, Dec 1, 2010 at 9:58 PM, John Case <case at sdf.lonestar.org> wrote: > ... > http://www.simon.com/giftcard/