Thanks for this Michael...

[ E.g. You see a list of people who bought a Special Interest Video on Great Bicycle Tracks of New York. You Think, based on this knowledge, that you'll rent the list and sell them a Part 2 version of the same, or slightly different version of Family Bicycle Tracks. The Problem is, Your Product is Similar to what was sold and so the original seller will not allow you to rent their list.]

One has to be creative on this....given the above example we know that these people are probably outdoors people, believe in healthy exercise, interested in health and fitness,etc.

One creates a product around one of these areas of interest, rents the list, offers the product for free with such great copy they can't resist but only after becoming a free member of the site you have built for it.

Then once they are members of your site you add another section to the site, and then you can create your "new" product for the bicycle track list that are now your members.

C.