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

Dynalist lets you organize your ideas and tasks in simple lists.

germ lets your team capture every great idea, brainstorm and turn them into actionable project plans.

KeepNote is a note-taking and organization. KeepNote is a note taking application that works on Windows, Linux, and MacOS X.

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

NixNote is an open source client for Evernote.

CherryTree is an hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries, e…

Goalton.com is a platform for goal and task management.

Manuskript is an open-source tool for writers.

MyLifeOrganized (MLO) is the most flexible and powerful task management software for getting your to-dos finally done.

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