Did you see this?
lj_nanowrimo LJ is going to give $1 to the NaNoWriMo Young Writers program for every participating LJer who wins NaNo. As the mother of a YWP participant, I think this is AWESOME. All you have to do to is join the comm and post your username in the Welcome thread.
You're going to win NaNo anyway, you might as well earn a little money for the kids. ;)
Edit: Chris Baty's pep talk for LJers:
So here's a shout-out to all the LJers in the house: You are brave. You are capable. And this year, trying is not an option. Forget that stuff about having a low-pressure month exploring your imagination. This year, it's all about winning.