The document summarizes a session on benchmarking and key performance indicators (KPIs) for measuring social media efforts at nonprofits. Three organizations - the American Leadership Forum Silicon Valley, the National Wildlife Federation, and the Monterey Bay Aquarium - shared their experiences developing SMART objectives, identifying relevant peer organizations for benchmarking, and establishing KPIs to track performance. The session provided an overview of benchmarking and KPIs, and highlighted examples and challenges the organizations have faced in designing and implementing social media measurement pilots.