The document discusses the Open University's adoption and development of Moodle as its virtual learning environment. Some key points: - The OU decided to adopt Moodle in July 2005 and began piloting it in May 2006 before a full launch in February 2007. - Since adoption, the OU has heavily customized Moodle through in-house developments and contributions to the Moodle community. These include modules for forums, blogs, wikis and more. - Moodle now supports over 600,000 users at the OU through a large-scale infrastructure of web servers, databases and storage. - The OU follows a quarterly release cycle to sync with core Moodle updates while gathering requirements for