This site, which guides users through the US Secretary of the Interior's Standards for Rehabilitation, will appeal to anyone who owns an old home or has an interest in historic preservation. After an initial overview of the standards, users can browse illustrated guidelines for specific building features and areas (windows, entrances, roofs, masonry, wood, etc.). For each, the site offers a list of recommended and not recommended practices. Additional topics addressed include energy, new additions, accessibility, and health/ safety. Another useful on-site resource is the National Park Service's Good Guides to historic buildings, landmarks, and landscapes.