Le generic anti-american joke.
Was actually an anti-lisp (programming language) joke, guessing you didn't read it xD
Another programming joke: How many prolog programmers does it take to screw in a light bulb? Yes.
A Non-programming joke: Three men die and go to heaven, St. Peter is at the pearly gates and says to the three men "Your transportation in heaven is based on how many times you cheated with your spouse, the more you cheated the worse your transportation is."
He then goes up to the first guy and says "You have cheated on your wife 2 times, thus you get an old car". The first person, slightly disappointed, takes his transport and leaves.
St. Peter goes to the second guy and says "You have cheated on your wife 4 times, thus you get a scabby, barely running tractor". The second guy, extremely disappointed with his tractor, walks of muttering to himself.
St. Peter goes to the third guy and says "You have cheated on your wife zero times, thus you get a luxary sports car!" The third guy is ecstatic and goes off his merry way.
Two weeks pass and the three guys meet up again, they see that the third guy is really sad. "What's wrong?" Says the second guy, "You got the best car out of all of us!"
"Yeah... *sniff*" says the third guy, "But I saw my wife riding a skateboard!"