Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

Micro Work 4 all - New Website aiming to get more workers and job seekers to perform tiny task and make money.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Picoworkers - Earn money from doing short, easy tasks similar to Microworkers. Picoworkers is the best alternative to Microworkers I ever find.

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.

Amazon Mechanical Turk - The online market place for work.