Microsoft Office 2016
Office 2016 Quick Start Information - downloadable quick reference guides at bottom of the page and other quick start info for each program
Office training center - Many resources, videos, etc. for Office 2016 and Office 365 programs
Office 2016 for Mac - Quick start guides
FindTime - Useful when trying to schedule a meeting with multiple people. Propose your selected times to all attendees and allow everyone to vote and quickly come to a consensus on what time works.