Boardroom battles and power plays shaped this year's U.S. list, which boasts eight new faces and - surprise! - a new No. 1.
|Number of millionaire households in the U.S. reaches high|
|Mark Zuckerberg calls Obama to complain about NSA|
|Microsoft's next big headache: The Google Chromebook|
|Premarkets: Global risks take center stage|
|Teens face toughest job market on record, study says|