Using Yammer to improve collaboration between organizations. Yammer is an enterprise microblogging service that allows for real-time sharing of status updates, links, and comments within and between organizations. It provides benefits like improving awareness, requesting help, finding people, and coordinating work while reducing email traffic. The presentation focuses on how to use Yammer to quickly create an inter-organizational collaboration space and provides examples from a project undertaken by Zipipop for the Finnish Ministry of Employment and the Economy. It discusses best practices for usage rules, community structures, and customization to facilitate collaboration across boundaries.