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.
SageThumbs - SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats...
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
MysticThumbs - MysticThumbs generates thumbnails of many image types not natively supported by Windows.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Icaros - Icaros is a collection of lightweight, high quality, Windows Shell Extensions