National Novel writing Month
National Novel Writing Month is a fun, seat-of-your-pants approach to novel writing. Participants begin writing November 1. The goal is to write a 175-page (50,000-word) novel by midnight, November 30.
Valuing enthusiasm and perseverance over talent and craft, NaNoWriMo is a novel-writing program for everyone who has thought fleetingly about writing a novel but has been scared away by the time and effort involved.
NanoWrimo is a wonderful site with terrific forums, great ideas and cool functionalities. If you have been thinking of writing fiction for the last so many years and it is just that you have been waiting for the right time, mood, leisure etc., I think you should check this out. Many of us need some sort of artifical external pressure to get us kick started. The Nano community does it very well for writers.