Hopelessly addicted to...

1) Scrabulous on Facebook. If you think Scrabulous on Facebook is too slow (it can stretch for days), go play live games with other Scrab-addicts on Scrabulous.com. This one has a time limit to each game (pre-determined by you and your opponent). Yes, I've been Scrabbing with random strangers. Hot, heart-pumping Scrabbing in under 10 minutes (you get a set number of minutes to play ALL your turns).

2) Web Boggle. It's on all the time. Just wait for the current live game to end to begin the next one. It's insane! And so bloody hard to win. How do they get those 6-letter words?

I haven't been going out for lunch in the past 2 days.
:P

POST EDIT: Another Facebook game that came to my attention -
Bogglific. BOGGLE on Facebook! Aaarrrrggghhhh! They're still trying to work out some kinks but it's, SUPER ADDICTIVE. Begin at your own risk.