ThinkingRock open source and multi-platform software for Getting Things Done - the stress-free productivity methodology and international best selling book by David Allan. [ http://en.wikipedia.org/wiki/Getting_Things_Done ]

Flashnote is a quick notes manager created for such cases. When you need a rough copy to save or to process some pieces of a text, Flashnote is small, quick and convenient. Press the shortcut-key combination and a rough copy is on the screen in a flash of a second.

Conqu is an easy to use yet powerful task management tool designed to help you conquer your inbox and get things done. With Conqu, you can organize the tasks by criteria that makes sense to you and then find the right task to do at the right time and place.

GeeTeeDee is a fancy, lightweight, easy to use and effective task management software.

Wieldy is a free to-do list manager that is based on the principles of GTD (Getting Things Done). It allows you to manage your to-dos in a simple but effective way. To-dos can be created as thoughts and actions, which can then be assigned to the Next Action, Today, or Someday...

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

Tasque is a simple task management app (TODO list). The main window has the ability to complete a task, change the priority, change the name, and change the due date without additional property dialogs.

Due Today offers a powerful solution to organize your tasks and projects using a mixture of David Allen's Getting Things Done methodology and your own organizational scheme.

Chaos Control was created to help you manage your goals and desired outcomes in both your business and personal life. Just write them down to make them real. This simple technique helps you to prioritize your goals before acting on them.

momentum is a new approach, implementing a workflow to get things done. Designed to clear up time and space for your vision, goals, projects and very next steps to get there (...nothing new so far).

Todour is an application for handling todo.txt files (as made famous by Gina Trapani of Lifehacker) on the mac and windows.

Stay on track of your goals right in the browser, the place you have open most of the day. Forget missed reminders on your smartphone or your paper planner. Motivate reminds you at the most crucial place. Your browser!