So I am in my mid 30's and so m y friends make fun of me that I blog and facebook etc... So of course many of them don't know all the lingo...So here is a short list for my friends:
DH = Dearest/Darling husband
DS = Dearest Son
DD = Dearest Daughter
LOL = Laugh Out Loud
I think that is all I can think of. I mostly use DH...
But for all you newbies to net lingo here is a great website for you to check out.