100 Greatest Moments in American Rhetoric
Frankly, I think this site has more Ronald Reagan than it needs, but it does have Richard Nixon's farewell address (man, I never get tired of that one) and a ton of other winners—in both text and MP3. Obviously slanted towards stuff they have audio files for, but a goldmine for those of us who appreciate good oratory.
Much as I like the prospect of being able to grunt a heartfelt Je ne regrette rien immediately before expiring, I know there will be too many what-ifs and wish-I-hadn'ts to make that even remotely possible. But here is one missed opportunity that won't flash before me, because John Atkinson has granted me a second chance.