Qwiki - Find and Read Articles on Wikipedia from your Mac menu bar!
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.
Wikiverse - An interactive galaxy of Wikipedia knowledge ✨
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Wikipedia - Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.