The Learning Resource Exchange (LRE) from European Schoolnet (EUN) is a service that enables schools to find educational content from many different countries and providers. It initially includes content from Ministries of Education (MoE) and other partners working with European Schoolnet (EUN) in the EC-funded CALIBRATE and MELT projects. Anyone is able to browse content in the LRE federation of repositories and teachers that register can also use LRE social tagging tools.