> <i><font color="yellow">Well those medical companies are definitely in line with his philanthropist image</font>/i><br /><br />My interpretation is that these are companies that have large upside potential as the baby boomer generation ages (erection drugs, pain drugs, etc.). Perhaps (very) slightly related, Corbis owns the rights to many of the images that define the 20th Century, so as baby boomers start to get nostalgic in their old age, Corbis will be happy to sell them the images that helped define their lives.<br /><br />I think a lot of this is for the money. Later he may plow that money into philanthropic activities, but if you are willing to invest in the long term (5-15 years) these are the company groups that should make money.<br /><br />Also, if Gates simply buys the common stock on the market, it doesn't help the company. It is only when Gates gives money directly to the company (in return for stock -- which dilutes everyone else's share) does the investment directly benefit the company by providing a cash infusion.<br /><br />[side bar]Having lived the last 20 years in a college town I always see people who want to save the world, save the forrest, save the <i>whatever</i>. Having seen what Gates has done and is doing, I realized if these college kids really want to make a difference, they should identify a career that makes money (lawyers, engineers, bio-technology), hit the books, work hard in their career, live below their means, and invest their excess cash each year in long-term investments. Years later they will have the cash to really make a difference -- buy the forrest; buy food, medicine, and clean water for the kids; buy textbooks and other equipment for their schools.<br /><br />In short, if you are a liberal who wants to make a difference, stop marching in the street and instead buckle down on the books in a field that can make some money, put on a suit and tie, work hard, and invest.[/side bar]</i>