We all remember some sentences from great speeches: Kennedy's Ich bin ein Berliner, Martin Luther King's I have a dream etc... Would it not be great if you could access the full text of historical speeches, listen to their mp3 version and watch the video of the inspired speaker?
Well, this is your lucky day: Go to American Rhethoric and you'll get all this and more. Indeed, there, you'll also find great speeches drawn from famous movies.
This is undoubdtedly a great site whose resources should prove most useful in class. Just think of a leadership class in a business school.
If you have some spare time, take their quizz. Quite interesting!