"If you tell someone the truth, you'd better make him laugh. Otherwise, he'll kill you." - Orwell
Radio Shack gets a good send up on The Onion, a great satire site. It devolves into potty humor at times... which is especially annoying, because those articles are neither funny nor insightful.
But with respect to the business world, it's spot on. Check out this little ditty about Starbucks... I swear this will happen some day.