There is no cost to register and ALL commissions are generated from Sales Volume not from recruitment.
There are many advantages to having an affiliate business over a business where you sell your own products or services.
This guy in India grabbed a chain from a woman and swallowed it as he fled. Authorities caught the thief and x-rays showed he in fact did swallow the chain.
Ask questions first before you join an affiliate program. Do a little research about the choices of program that you intend to join into.
The Internet is an amazing thing. Never before in history has making money been so easy.