I'm no echonomics prof. or market analyst. But, I was online on Dot-com bubble. Today's valuations of companies such as Facebok reminds me Dot-com bubble.
How on earth Face book worht more than Boeing? Luckliy I'm not alone and there are still some sensible people around.
At http://finance.fortune.cnn.com/2011/01/04/five-reasons-why-im-not-buying-facebook/ Duff McDonald explains his reasons.