There are plenty of websites that are legitimate and pay you to work online. You will have to decide if you want to work and earn a passive income, a part-time income or a full-time income. I know many sites that hire people to work at home and you'll be paid for your time. Most of these sites are for call centers or even help desks.
I could sit here and name over 1800 sites that will pay you to work online and you can earn a passive income from them.
There are survey sites, PTC sites, GPT sites, selling your videos or photos, content writing sites, editing sites, proofreading sites and even short link sites. Can you let me know what you'd like to do and I can give you some site names that are tested and legitimate sites you can join.
For starters, you can join Beermoney Forum, MyLot, Money clicker, and oDesk.