This program is a new market itself, where people could include repositories of full programs and you can download it for free!!! I recommend to include this repository:http://android-es.com/repo/apk
Take into account that is a public repository, so if you have any paid aplication that is not in the repository at the moment, upload it to the repository and share it with the rest of the users!!!
How to upload an aplication:
Go here (its in spanish but dont worry): http://www.android-es.com/repositorios
Browse your apk of the aplication, and upload it, that easy!!
You will find now aplications like: documents to go (full), robodefense, sms pop up, beautifull widgets, and many more! but the idea is that everybody could upload all the paid aplication they have (only the paid, because if it is free, we have the google market for that).
Well hope this is usefull to all of you!!! of course, I made this public, and I do not take any responsability of the use of it. This was made to do backups of your programs.