Our power rankings are based on a proprietary formula weighing salary, number of press clips returned on Lexis-Nexis, and by gauging popularity from searches on Dow Jones Interactive and Google.com.

FORBES: India's Celebrity Film Stars

By the end of this year, the CalPERS board hopes to have a formula for weighing such factors as the transparency of government regulatory activities, political stability and labor practices.

CENTERFORSECURITYPOLICY: Center For Security Policy

Our ranking formula ignores the original amount invested in a deal (as it is often undisclosed), instead weighing most heavily the market capitalization of a venture-backed company on the close of its first day of trading or the purchase price in an acquisition.

FORBES: Scott Bonham, The Midas List