Micro Work 4 all - New Website aiming to get more workers and job seekers to perform tiny task and make money.
Picoworkers - Earn money from doing short, easy tasks similar to Microworkers. Picoworkers is the best alternative to Microworkers I ever find.
Fiverr - One marketplace, millions of professional services.
SEOClerks - The largest SEO Marketplace on the planet. - SEOClerks
seoclerk - SEOClerks is a marketplace originally designed for SEO services.
Amazon Mechanical Turk - The online market place for work.