I haven't read many of the pp's, but I feel STRONGLY compelled to chime in and post an employer's point of view on this subject.
We own a business that employs approx. 70 employees at this time. The majority of those employees are out-in-the-field service/installation people, but we do have a good sized office staff and many salespeople.
YES, we have fired office staff for wasting their time on the internet....be it facebook, emailing, random surfing, forum sitting, etc.! We have an in-house IT/service person who has programs installed to monitor computer usage. It's not a waste of his time....in fact, it's quite easy to implement.
Time wasted on the computer is no different, in OUR OPINION, than any other type of employee theft. It's no different than if an employee was lifting items out of the warehouse. It's no different than an employee using a company vehicle to run personal errands. It's no different than an employee calling in "sick" when they are really out playing golf. It's no different than an employee who regularly arrives late and leaves early from work.
It's in our handbook and employees are given a warning the first time they are caught wasting time online. There is ALWAYS something else they could be doing elsewhere in the office if they have some down time.
We have had to take a hard line on this problem, and YES we consider all employees valuable, so the excuse that an employee is "too valuable" to let go doesn't fly here. Everybody is replaceable.
This whole issue is a very HOT button with me, and I could go on and on, but I won't. It makes my BP rise when I read posts from people who "brag" about how they get away with things like this at work. I'd like to see other employers post on this thread and share their experiences.
Having said all that, we have a very good relationship with our employees. We are just protecting the bottom line of the business, and being profitable is good for us all.