Naughtiest And Nicest C.E.O.'s Of 2008, a site that lets employees anonymously review their employers and share salary information, is out with a list of the naughtiest and nicest chief executives of 2008, based on those reviews.

The nicest boss of all was Arthur D. Levinson, chief of Genentech, who got a 93 percent approval rating. He leads the Silicon Valley biotech company with a "decision-making structure that intrinsically forces authority downward to the lowest possible level providing many opportunities to exercise and test one's judgment," a strategic planner at Genentech wrote.