Dear Friend - You sure have a good idea. I think you should offer your visitors Free CD-Roms on subscription. How? Simple: Visit http://www.unbeatabledeals.com and sign up as a partner. You'll also get $.25 per CD you giveaway.
That is almost what I'm looking for except for it's not entirely free. You still have to pay for the shipping. Do you think that people who win these CDs would mind having to pay the shipping, especially if outside the US?