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.

Xmind - Xmind is a brainstorming and mind mapping application.

Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.

MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.

RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.

Coggle - Coggle is a simple, beautiful, powerful way of structuring information.