Ephemeral films are those films that are made "for educational, industrial, or promotional purposes" and they are a specialty over at the Internet Archive. This delightful collection is both informative and amusing and contains over 200 of these films. Visitors can view the "Most Downloaded Items Last Week" to get a sense of the wisdom of the crowds, or they can go their own way by browsing by subject or keyword. The site has a number of sub-collections, including one dedicated to drive-in movie ads and public information films created by the British government. Visitors shouldn't miss the public service announcements by the U.S. Civil Defense office aimed at farmers (the "actors" are marionettes) or the "Beginning Responsibility: Lunchroom Manners" instructional film.