Forbes magazine's annual list of the richest people in the US is out for 2012, and Microsoft founder Bill Gates is #1 again...for the 19th year in a row. But Bill Gates is not the richest man in the world with his  net worth of "only" 66 billion dollars.. That honor goes to Carlos Slim, a mexican businessman who is currently ranked as the richest man on the planet with a net worth of 69 Billion dollars !!