Are they crazy to give away money for free?!
No they are not crazy. They collect lots of money from the sponsor websites. In fact the sponsors pay lots of money to them for advertisements. Let me give you two examples.
1-Google pays you money if you put the link of some sites on your website. This means that the websites that give away free ipods and money can take money only for referring some customers to the websites like Blockbuster, NY Times, etc (i.e., the sponsor websites).
2-You know that these companies pay millions of dollars for advertisements on TV without getting any guarantee that anybody that watches those ads ever shops with them, but the website that offer free ipods can guarantee that its customers even register with Blockbuster, efax, etc. That mean that the companies may pay much more than what they pay for a TV ad.
Is registering with these sites immoral?
I have thought about that and I could not find any reason that registering with them is immoral. I don't pay any money to them and I don't force anybody to pay any money to them. Even I show you how not to pay money to them. I think it is absolutely legitimate.
Is it possible to get it absolutely free?
Yes. I am sure it is.
Do they give it away absolutely free?
Yes. In the sense that they don't ask you to pay any money, yes. However you should find 5 people to register with the same site and complete one offer. Also you should complete one offer. Most offers are free trials and you will not be charged for completing them if you cancel them before the free trial is finished. So if you cancel the offer in a short time it is absolutely free. What the website does is that they advertise for some other websites. This is the basic idea of how they collect money. So, if YOU do not want to pay money you will cancel the offers and hence will not pay anything.
So, if you are absolutely convinced that it is not immoral and it works start by clicking here and registering. For details you may read my previous post.