Microworkers is a world-widely available platform where workers and employers meet for their micro tasks. You can join this site for free. All you need is to sign up here and verify your email address.
You can choose any job according to your skill, before doing any task you must read all the details because this site has a reputation system if your reputation is high, more employers will hire you.
The feature I like about this site is its minimum withdraw limit, that is $10 (Payza or credit card)
Need any help read their FAQ (Frequently Asked Questions) or comment here.