Here's a nice little company that I've come across a few times, they allow you to earn money from typing at home. They do not advertise their website, but rely on word of mouth alone, through recommendations etc... They are completely risk free, you don't pay any money to them whatsoever, and your not committed, so that means you could pull out at any time, if you found that the work is not for you. If you encounter anybody claiming to represent KeyForCash who wants to charge you a fee, they are not legitimate.
There are a few requirements in order to join, first you have to be 18 or over, live in one of the 48 states of the US, and legally able to work there. You sign up and they put your details on their list and contact you when they have work, its that easy.