i need to earn about 600 bucks?

Any of those so-called "make money on the internet" opportunities are just scams.

Seriously, if anyone could make $100s of dollars just clicking a few buttons for an hour or so a day, guess what? There'd be no poverty because everyone would be rich!

Sorry, but you'll have to see what you can do around the house or neighborhood to earn the cash. If you've got older neighbors, I'm sure they'd like someone to help them around the house, or run some light errands for them. There's also babysitting, pet walking/sitting, house sitting, etc.

Try negotiating with your parents - take on extra chores in return for the money.

you could maybe try making a website and getting those google advertisements to advertise on it. You can censor chinese websites for google.

I know that yahoo answers makes revenue only using advertisements, that is why you dont have to pay anything to use it. Sorry but there is not much more I know of, and good luck dude. Maybe if you are open to babysitting, you might try that, I know its not online but I do that everyday.