The Cyperposium web site has webcasts online from this year's conference. I did particularly like the ones with Esther Dyson (EDVentures), Matthew Szulik (RedHat) and Bruce Claflin (CEO of 3COM). There's also archives from last year's conference with a session held by Tim Koogle (CEO of Yahoo).
Esther Dyson talks about her difficult job of "making CEO's listen". "It's good to tell the truth, with one exception. You shouldn't tell people you are smarter than they are, even if it's the truth ... especially if it's the truth!". She believes that an important job of a CEO is to "absorb uncertainty".