David Foster Wallace commencement address audio Jun 11 2010
In 2005, David Foster Wallace gave the commencement address at Kenyon College. After a transcript of the speech was posted online (the original was taken down...a copy is available here), it became something of a high-brow viral sensation and was eventually packaged into book form.
The original audio recording (i.e. as read by Wallace on the Kenyon podium) has just been released on Audible.com and is also available through iTunes and on Amazon (this is the cheapest option). Note: there is also an audiobook version of the speech read by Wallace's sister...but I think the original is the best bet. It's a fantastic speech. (via howling fantods)