The history of historic preservation in the United States is a fascinating one, even if it contains a few moments of devastating tragedy, such as when the historic Pennsylvania Station was demolished in 1964. Scholars and preservation activists will appreciate learning that Cornell University has digitized the archives of "Preservation News". Published by the National Trust for Historic Preservation, this archive contains every issue from 1960 to 1995 (minus two issues), and is replete with interesting editorials, photographs, and news about significant restoration projects during this period. Visitors to the archive can browse through the issues chronologically, or they can also perform a full-text search. Overall, it's a great resource, and one that is worth telling friends with an interest in such matters.