I have personally used Post Affiliate Pro for almost 2. While I had some small issues, the customer support team quickly resolved them. The software is pretty affordable and has a lot of excellent features and many, many integrations. We took the advantage of free set-up and integration, which was a very nice gesture from the company.
Micro Work 4 all - New Website aiming to get more workers and job seekers to perform tiny task and make money.
17hats - The all-in-one business system for entrepreneurs.
Picoworkers - Earn money from doing short, easy tasks similar to Microworkers. Picoworkers is the best alternative to Microworkers I ever find.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
Amazon Mechanical Turk - The online market place for work.
LiveIntent - LiveIntent is a web platform that offers effective e-mail advertising services for marketers and publishers.