Here's the best I've been able to find from my cursory search of Google:
Thus far it appears that Jon cannot and does not want to be contacted via e-mail. If you'd like to write him or anyone on The Daily Show with Jon Stewart here's the mailing address. (Yes, you have to buy a stamp. Oh the humanity!)
Jon Stewart
c/o The Daily Show with Jon Stewart
733 11th Avenue
New York, NY 10019-5051
http://www.jonstewart.net/faq.html#know Assuming they work on/contribute to "The Daily Show," you can probably substitute any name for Jon's. Can't make any claims as to how quickly they reply or if/what they will autograph, but that appears to be the address I've seen.
