Martin Risgaard Rasmussen presents on Yammer adoption at Grundfos. He discusses how Yammer grew from 0 to 1500 users in 3 weeks after being introduced to connect employees before an in-person meeting. He outlines Grundfos' focus on social business and empowering employees through digital tools. Rasmussen then shares three case studies that demonstrated Yammer's success and five important lessons learned, including starting with a clear purpose, respecting the 90:9:1 participation principle, communicating guidelines, showing tangible value, and being available for support. He concludes by discussing next steps like proving ROI and addressing questions.