What are some legitimate ways to easily make money online?

Here is a question someone asked about making money:
I’m looking for some legitimate ways to make money online. I really want to be able to make some money from home to help me with the state of the economy. Please let me know of some legitimate ways to make money online without having to pay anything. I am also not looking for anything that is a scam because that seems to be all that I can find online these times. Please let me know of some websites that any of you have tried and are known to easily work. Thanks in advance and your help would be greatly appreciated.