Guys,
A little advice from a R1 admit:
I know there's a great temptation to check your status every idle moment, but these invites roll in over the course of like two weeks. You'll drive yourself mad if, at the end of every day in which you don't receive word, you take stock of your life and wonder where it all went wrong. Relax. Someone else correctly pointed out that the email comes in about an hour or so after the online status is updated. Wait for it to come to you.
Just like how some shopaholics freeze their credit cards in a block of ice in the fridge, make your password a series of random letters and put the log-in info in an inconvenient spot. Trust me. It'll help resist the temptation to constantly refresh and be a serious boon to your mental health and outlook on life.
All that said, GOOD LUCK EVERYBODY!