The OECD now uses social media to publicise its work to audiences beyond its traditional constituency of governments and policymakers. Although practically everyone within the Organisation would recognise the value of this in theory, it can be difficult to overcome an approach to communication characterised by consensus and caution. This is one reason why experiments with blogs, etc have had mixed results. The presentation looks at the successes and failures, and reviews how people have reacted inside the OECD itself as well as outside. It discusses the challenges posed by having to communicate on a diverse set of issues to an audience ranging from the general public to experts. It also describes the human resources and other costs associated with the projects.