Last week, I posted a tutorial on what to include in your data card video. In that tutorial, I recommended
"Your list owners and everyone else will appreciate it when you treat the people on the list with great respect. You should honor them – don’t treat them like data."
Here's a good example from RMI where they honor the Car and Driver subscribers.
See the full data card here: http://lists.nextmark.com/market?page=order/online/datacard&id=198033