The wrong answer from management:

Companies are starting to ban Web access, block instant messaging services to squash discreet conversations among chatty co-workers and prohibit employees from watching sporting events on their computers.

"If you're watching video, you're probably not working," said Vimal Solanki, director of product marketing at McAfee Inc., a software vendor whose products to block Web access are selling briskly.

The correct answer from management:

Indeed, an employee for the New York City education department was recently fired for using the Web to read online news reports and visit travel sites while at work. He had been warned to stop.

That is not an isolated case. According to a survey conducted in 2005 by the ePolicy Institute and the American Management Association, 26 percent of employers have fired workers for misusing the Internet. A total of 526 companies responded to the survey.

The first example demonstrates a lack of work - by management. It's not really that hard to tell whether your employees are working or not; do they get their assigned tasks done? If they do, and they aren't violating any laws, why do you care what they are filling spare time with (yes, with some caveats :) )? If you do care, then you suck as a manager. Plain and simple.

The source of this - an article in the Chicago Tribune.