I'm 15 as well and what really worked for me was craigslist. I started selling anything I could, and that I didn't want or need anymore. Funny how much you can earn from that! It's legal, easy, and fast. Just tell your parents to sell the stuff, some people don't like buying from 15 year olds. But if you find something better then tell me so I can do it too :p
Well not a lot of places on the web or not on the web will hire a 15 year old and most of those websites that help you make money are scams. The kind of jobs you can make money from is by cutting lawns for friends and family, walking dogs for friends and family, babysitting for your friends and family. And the reason why I say friends and families a lot is because its most definitely safer you dont want to end up being kidnapped and stuff....
I wish you the best of luck with your job hunt! :-)
There are no legit online jobs.
If you want to make money, look into the traditional things: babysitting, dog walking, running errands, etc. I'm sure there are neighbors nearby who would be willing to pay you a couple of bucks to do something for them. Maybe cook them dinner? House sit? Water the plants when they're out? Be creative.
There are no legit money making sites regardless of your age.
To make money selling "things", you need to have "things" to sell.