摘要：A "virtual farm" website with science-based information about dairy sustainability topics was created for a variety of audiences. A key structure of the website is layering of information. At the most frequently used entry level, a site visitor explores by looking and learning. As interest evolves, the visitor finds links to technical levels, and those with a deep interest in a topic will find peer-reviewed documents at the research resource level. Process-based model scenarios include climate change mitigation practices targeted at dairies. Anecdotally, users have appreciated the professional looking access to technical information and depiction of modern dairy farming practices. Extension educators can use the site to inform themselves, for referral of clients, and as a model.
