Hmm. Well, to be fair to Nanowrimo, they don't really put 'pressure' on you, so to speak. You get an email once a week, reminding you of the deadline and how many words you should have done by then to be on track.

There are forums and LJ comms you can join to keep in contact with other people, but I never got involved in them.

The real pressure that I found was the pressure I put on myself, which is something I tend to do once I commit to something. I'm a bit of a worrier *g* If you're good at not putting too much pressure on yourself then you probably won't find it as much of a problem as I did.