Nanowrimo is awesome, fun, crazy, terrifying all at the same time. Interested? Huzzah! Sign up at http://www.nanowrimo.org if you haven't already. If you want to make it social (I recommend it... that third week, when the novelty wears off... socialness keeps me going!) find and join your local region, see what they're up to. Your ML(s) will probably be organising writeins and social events for congratulations, commiserations, encouragement and all the rest.
I'm an ML for my local region, but also offering my limitless energy here for Alfan Wrimos for word wars, personal pep talks, chattering about how much our stories suck or rule. Find me on the Nanowrimo website: Loulabellum
Some of you might have seen Swift's achievement of not only finishing a nanovel but also editing it and getting it to manifest in paperform.

Once more into Nanoland my friends!!
Updated:
Alfawrimo usernames:
loulabelle - loulabellum
Nuran - Andumien
GrandFromage - GrandFromage
Rotku - Rotku
Rumple C - Renaissancenick
Swift - Siaer