This is the web version of a feature thatoriginally appeared in Real EstateForum magazine. To see the story in its originallayout, click here.

It's one thing to have a successful career, but it's anotherthing altogether to reach a remarkable level of success in theearly part of one's career. But that's the predominant thread tyingthis year's class of 50 Under 40 together.

The members of this diverse group have very differentbackgrounds, upbringings, educational attainments and even familyhistories. Some come from longstanding families heavily involved inreal estate, while others had no such background and changed thedirection of their careers after starting in other fields. Somehave built businesses from the ground up, while others areinstrumental in the current success of their companies. Many alsotake time out of their schedules to make notable contributions totheir communities or charitable causes.