Business's hottest rising stars

Highest paid under 40 Which young executives at public companies brought home the most bacon this year? And exactly how much bacon are we talking about? More
Where is the economy heading? This yearís innovators offer their economic predictions for the next few years and beyond. More

My mentor: Best advice
No one on our 40 under 40 list would have gotten where they are without a little help. They share with us the people who've had the biggest influence on their lives and careers. More

Ones to watch
They may not have made the list this year, but we're keeping an eye on these rising stars. More

Wall Street's Young Guns
Blackstone has a rep for growing young talent. Steve Schwarzman's strategy: managing overachievers. More

40 under 40 cut loose
Where can you find these ambitious ones when they are not in the spotlight? Photographer Jeff Minton captured a selection of this year's 40 under 40 in their natural habitats. More

Meet Warren Buffett's heir apparent
Warren Buffett's latest hire, a 39-year old hedge fund manager named Todd Combs, offers new insight into how Berkshire Hathaway's investment portfolio will be managed after he steps down. More

When they were young: 10 business leaders under 40 way back when
Michael Dell was a mere 21 years old when he first appeared in Fortune's pages. Bill Gates made the cover when he was 30. Here's a look back at some of the biggest business leaders of the day when they were climbing the first rungs of the corporate ladder. More