I fancy giving this refer a friend free ipod thing a go. I'm looking at trying to promote this via articles etc, maybe make a mini site. I have seen a few and it seems the offer involves giving card details etc, I'm wondering if theres one that does not require card details and is either free or some other kind of offer. I'm yet to get pass the offer so I can start referring friends. Also is there a system which will allow say 5 friends an ipod, then a further 5 or 10 and get another. Or does each id only work for one ipod.