Here are 3 work from home jobs that I can tell you are legitimate. They vary in pay and type of work.
Lionbridge:
http://www.lionbridge.com/lionbridge/en-US/company/web-site/internet-assessors.htmIt takes a good while (couple of months)to get hired and the process isn't easy but it's well worth the time. I can't give a lot of information because I signed a non-disclosure statement but I can say my first full month paycheck was over $900.
LikeWork:
https://www.livework.com/I haven't worked for them but I have a friend who does. She makes about $700+ per month answering questions. Hiring process seems to be quicker and easier than Lionbridge.
ChaCha.com:
http://becomeaguide.chacha.com/This is probably the easiest to get hired but the pay is the least. However, if you are quick you can make $3.00 - $5.00 per hour without contests and they run contests weekly. The nice thing with ChaCha is you can work today and pay yourself today through an account at First Internet Bank of Indiana. (There is a $2.00 fee per payout). I usually wait until I have over $100.00 to pay myself but it's nice having the option in case of an emergency. ChaCha is the most fun, but not the most lucrative.
I mostly work Lionbridge now but I maintain enough work at ChaCha to keep my account active. More eggs in my basket is better than 1 egg in my basket. :-)
If you have questions you can private message me.
These are three online jobs that I know for a fact are legitimate and that you don't have to worry about giving your personal information to. You WILL get paid by these companies.
I hope this helps someone!