Boing Boing points us to this archive of one hundred old-time horror radio plays, just waiting to be downloaded and enjoyed. Some standouts include "Sorry, Wrong Number" by the Lux Radio Theatre, Hall of Fantasy's version of "The Cask of Amontillado," and of course Mercury Theater's "War of the Worlds." Awesome.
Image taken from Slacks and Stacks.
Update: Alas, the site is no more.