I wanna explode my digital item ad, please help

I have certain digital items for sale, which can be delivered by courier only. I need to blast the ad to the world. The html page will be having a paypal button of course to receive payment. This is a legit sale.

So Pros please help me, assume that I have no website and I do not bother about page rank. I need just to blast my ad or blog so that I can receive payment.

You can also suggest me the auction sites (no ebay, but like ebay) also. Please suggest me all free sources as I am tight with funds as you know.

So Pros please help me how to do it.

Try some sites like cb, to be the publisher.
The free ads sites to post free ads. (I don't know the exact name)
Post in the related forums

Better to have your landing page because it would looks much more authoritative.Once you have made some money, you can use that money to do much bigger promotion

Just a suggestion

Thank you for your help, but I have used clickbank and it is saturated now. I want to try some other options. please suggest something other than clickbank, ebay, and paydotcom.

Can I blast my ad with a paypal button to pay, the software is very heavy in size.

Thank you for your help, but I have used clickbank and it is saturated now. I want to try some other options. please suggest something other than clickbank, ebay, and paydotcom.

Can I blast my ad with a paypal button to pay, the software is very heavy in size.

Please suggest me 2 options:-
1. when i have a website
2. when i do not have a website.

Also do you have any free software to blast ad ? please let me know considering the above 2 options.