Zim Wiki - Zim is a graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Scribbleton - The little personal wiki.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
MyInfo - MyInfo is the most versatile organizer for Windows
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.