Plan - Plan is a better way to organize.
Dynalist - Dynalist is a web app that lets you break down and organize your thoughts in the format of lists.
Outplanr - Turn your to-do list into a real work plan
Taleguild - Web application for short story writers and essayists
Clean Google Calendar - Makes Google Calendar look nicer & launches as a desktop app
Workflowy - A better way to organize your mind.