This document summarizes a presentation on measuring work in philanthropy. It discusses four key lessons: only collect data that will be acted on, understand how measures create incentives, be careful of "vanity metrics" online, and use data to tell a story. It also describes two group exercises where attendees discussed occasions when measuring work informed decisions or communicating findings advanced a mission. Finally, it outlines three trends in the sector: a movement toward openness and transparency, treating data as a product, and harnessing increased mobile connectivity.