Cute Extras:
O_O = Eyes and nose (usually means "I'm looking at you")
----<@ = A rose
=~ = A candle
<>< = Christian

Short words:
(((name))) = virtual hugs
(((H))) = Big hug
AFK = away from keyboard
AAF = Always and Forever AFAIK = As Far As I Know ASL or A/S/L = Age Sex Location
ASAP = As Soon As Possible BAK = Back at keyboard
BBL = be back later
BBIAB = Be back in a bit
BBIAF = Be back in a few
BBS = Be back shortly/soon
BF = Boyfriend B4 = Before
BRB = be right back
BTW = by the way
CSL = Can’t stop laughing
CUL8R = see you later
cya = see you later
CYL = See ya later
EOM = End of message
EMSG = Email Message FAQ = frequently asked question
F2F = Face to face
FWIW = for what it's worth
FYA = For your amusement
FYI = for your information
GTSY = good to see you
GA = Go ahead
GFETE = Grinning from ear to ear
GFI = Go for it
GF = Girlfriend GG = Good game / Gotta go
GTG = Got to go
HAK = Hugs and kisses
IMHO = in my humble opinion
IOW = in other words
IC = I see
ILY = I love you
IMO = In my opinion
IOH = I’m outta here
IRL = In real life
KIT = Keep In Touch LOL = laughing out loud
L8R = Later (see you later) LTNS = long time no see
LY = Love Ya MTF = More to Follow NBD = No big deal
NM = Nevermind
OTOH = on the other hand
OIC = Oh I see
OMG = Oh my God
POV = Point of View
PM = Private Message QT = Cutie ROFL = rolling on the floor laughing
ROFLOL = Rolling on the floor laughing out loud
THX = thanks
TIA = thanks in advance
TTFN = ta ta for now
TTYL = talk to you later
TAFN = That’s all for now
TFN = Thanks for nothing
TTFN = Ta Ta for now
THX = Thanks
WTG = Way to go
WB = welcome back
YBS = You'll be Sorry 10/4 = I Understand 88 = Love and Kisses 100 = Nature Calls/Pit Stop 404 = I have no clue

Noise:
o = lower case O.
- = a dash
~ = tilde

Eyes:
8 = number 8
= = an equal sign
: = a colon
; = a semicolon