Guy Kawasaki: Never let panelists use PowerPoint. Even if the panelists are CEOs and Nobel Prize winners, never let them give a “brief” PowerPoint presentation. If one panelist uses PowerPoint, everyone else will want to. Then the session will encounter the technical difficulty of making multiple laptops work with the projector or the challenge of integrating presentations into one. Forget it.
The evil of PowerPoint is self-replicating.
(Via Hugh Macleod.)