This document discusses evaluating the impact of disseminating research via social media. It provides examples from a project called FP7 'The Evolving concept of Security' that used various social media and digital channels to disseminate research findings. Metrics like website traffic, audience demographics, social media engagement are presented to measure the reach and influence of dissemination activities. The importance of developing specific, measurable impact objectives and collecting both quantitative and qualitative data is emphasized for demonstrating research impact to funding bodies.