Over on BBG, our Joel's got a video clip of a man using the internet with an antique modem from 1964:
K.C. (a.ka. "Phreakmonkey") has a Livermore Data Systems "Model A" acoustic coupler modem, a 300 baud modem from the '60s–"one of the oldest modems of still in existence. It was given to me by the widow of an IBM engineer."
So, so awesome. If I were a fiction writer, I'd do a short story about an alternate present where broadband never came to be, but the entire world was connected through analog, low-baud modems.
Video: Connecting to the internet with a modem from 1964