Couple of items I found to be funny.
First in the http://www.pitchforkmedia.com/top/solos/ The Top 50 Worst Guitar Solos of the Millennium. Pretty hilarious and no punches pulled. Hell, http://www.rush.com/ Rush is even listed! No one is safe! Will probably at least spawn some good coversations (arguments). Next - not as much funny as interesting. So funny in an odd kind of way. It’s http://en.wikipedia.org/wiki/Special:Randompage Wikipedia’s Random Page. Try it out. It’s addictive. Fun way to start the morning and learn something new.