[Edward Teach]

Run your own DNS at home:

A facebook.com 127.0.0.1

It’s not perfect, but it’s a good start.

[dfwgator]

You can do that by editing the /etc/hosts file.

I believe in Windows it’s C:/Windows/system32/drivers/etc/hosts.

Then add an entry facebook.com 127.0.0.1

[Bob]

Doing that would only prevent her from accessing facebook on that specific computer.

While that's good, it wouldn't keep her from accessing facebook from any other computer that doesn't have that hosts file entry in it. I was thinking more along the lines of her parents ensuring/insisting that she delete her facebook page herself since they can't do it for her. (Maybe I'm just too old school in thinking that parents can actually exert some control over their kids.)