An article by Rudy Yandrick in the current issue of HR Magazine focuses on workplace bullies; it's also available online:

"What is one of the most insidious and destructive problems, yet also one of the least documented and most tolerated?

Answer: Workplace bullying.

The problem often surfaces in such behavioral forms as verbal abuse, sexual harassment and discrimination. But bullying is a subsurface problem in many organizations, causing stress-related illnesses, turnover, defective work, stifled creativity and, for its targets, shattered careers. It is a problem that knows no geographic boundaries and is not confined to a particular industry. "