FB was how I learned that my dad and some friends and their families were safe and unharmed following last week's earthquake.

I have my privacy settings very high. It is very hard for people to find me.

I probably only check it a few times a day, for several minutes at a time. Rarely post updates but I do share vacation photos.

It can be a good thing, as long as you have your own rules and boundaries for how you use it.