Here is an article titled "My investment advice for 2006" from Mark Cuban. In short he is telling everyone to stay away from stock market and go with an interest bearing investment. Why? See below an excerpt:
"For every stock you buy, there is someone selling you that stock. What is it that you know that they dont ? What is it that they know, that you dont ? Who has the edge ? If its not you. Chances are you are going to lose money on the deal."
He also has another article about the subject which to me is A MUST READ FOR ANYONE WHO WANTS TO INVEST IN STOCK MARKET. I guess I'll buy that "The Number" book he mentioned but I don't know if I'll probably take his advice and not go deeper than I already am.