Info Select - Info Select is a Personal Information Manager that organizes Internet data, notes, to-do's...
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
C-Organizer - C-Organizer is a robust software tool designed for the professional manager that permits them to organize business activities altogether.
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
MSD Organizer - MSD Organizer one of the best software providing you a personalized experience with the complete visibility of the personal and professional manager.
Strikethru - Strikethru is a kind of to-do list notebook for managing work lists and staying updated with the important tasks.