Movies, Television, Radio

Internet Movie Database
Up-to-date information on movies from the early days of cinema to the present. The filmography database includes actors, directors, writers, composers, plot summaries, character names, and more.
AFI Catalog of Feature Films
The AFI description of the site states that the Catalog is "the most authoritative filmographic database on the web, includes entries on nearly 60,000 American feature-length and 17,000 short films produced from 1893-2011, as well as AFI Awards Outstanding Movies of the Year from 2000 through 2010."
Radio Days: a Soundbite History
Information about, and soundclips from, the early days of radio.  (Note: If main page is not visible when using Netscape, switch to Internet Explorer or another browser.)