This document discusses approaches to measuring social impact through shared measurement. It begins by providing background on the increasing pressure on charities to demonstrate impact and issues with isolated measurement efforts. It then defines shared measurement as using common tools and processes to track outcomes across similar organizations. The document presents the Journey to Employment framework as an example of a shared approach to measuring employability. It also describes NPC's Well-Being Measure tool and shows example results. Finally, it discusses the CAADA system as another case of embedded shared measurement across domestic violence services.