You can sign up for an iphone unlocking affiliate program. Make 70$ per phone or 10$ per software sell. look at http://unlock-iphone-otb.com/makemoney.php
There are affiliate programs which means you get an ID to promote someone else's product for FREE. You do not have to pay money or buy the program. ClickBank is best known, but there is Commission Junction, PayDotCom and LinkShare at https://cli.linksynergy.com The other alternative is MLM or network marketing where you have to buy something every month and then attempt to get other people to sign up underneath you and buy something every month. If you are starting out, I would try marketing affiliate programs because you are not going to lose any money. The key to making a lot of money is to have as many one-way links pointing to what you are selling with good (popular) keywords describing it. I can say this having spent 10s of thousands of dollars finding out.