Take a look at Gary Ball's blog post. it is a comment on another person's blog, but his commentary is insightful for us "techies":
What a wonderful post! I totally agree. I agree that it would work well with your own children. I also agree with knowing that corporate emails and web history is never fully hidden and can be viewed by practically anyone, so it is a good thing to be conscience of what your putting out there.
What do you think?