Lol I have a huge family and we are all incredibly close. I have lots of them on fb, but don't really use it as a means of chat because I normally chat on the phone to my sister every day or so, and I chat to my mum all day by texts, and the occasional text chat/ring when my dad is free.
I also have ebuddy on my phone so I am usually constantly logged into FB and MSN so I can easily talk to people all day on my phone.
I did warn my Mum that my language is not the best and she know this, and so on fb if theres something she doesn't want to see then she just shouldn't look at it, and we kind of have a mutual understanding that she just ignores anything she doesn't want to see, but she is pretty cool about most things. She's more my mate, so it doesn't really matter what I post.
I couldn't go a day without talking to my mum or my sister!! And I really do miss my dad when he is working lots but we do manage to catch up every week or so.
Patti- if you are 'offline' noone can see you are online. However if you post on a wall or something, your mum may be able to see this and realise you are appearing offline, because you are posting.
HOWEVER
what you can do, is make a separate chat list. I never knew this. What you do is go to chat and friend list (I believe) and you can put your mother in her own little group and always appear offline to her, until you choose to appear online to her.
Jen