WorkFlowy is an organizational tool that makes life easier. It's a surprisingly powerful way to take notes, make lists, collaborate, brainstorm, plan.

Mindomo is an online mind map Software where users can create, view and share mind maps in their browser.

Checkvist helps you create and share online outlines, project plans, online checklists, and task lists.

NoteCase Pro is to quickly capture, organize, protect, access, and recycle your information.

Toodledo is a popular and powerful online productivity tool. Manage your to-do list, take notes, track habits, and organize ideas into outlines and lists.

Org-mode is an Emacs Mode for Notes, Planning, and Authoring.

Moo.do brings all of your tasks together into one consistent interface.