This document provides information about ARIADNE, a federation of online learning repositories. It discusses ARIADNE's centers located in various countries, its new members, and its relationship to other projects like GLOBE and MACE. Diagrams show how ARIADNE harvests and indexes content using open standards and interfaces with other systems through its federated search engine. The document outlines technologies used for communication, collaboration, content delivery, and more that enable online and blended learning applications.