Timed Writing

Based on the Wikipedia entry for NaNoWriMo:

Edit a novel: Those who wish to spend time editing and polishing the stories composed during NaNoWriMo may choose to follow it up in March with NaNoEdMo, or National Novel Editing Month.

Life-cycle novel management: NaNoPubYe is a similar group that seeks to have a novel published in a year, starting with NaNoWriMo in November and continuing through the editing and publishing process through the remaining 11 months. NaNoWriYe runs for a full year with winners writing between 50,000 and 3,000,000 words.

Finish that novel: NaNoFiMo, National Novel Finishing Month, will take place in December.

Write your novel in July: JulNoWriMo has its third year of participants in 2007. There are two communities for writing a novel in January, a Livejournal community and a forum-based website which are loosely affiliated but not the same.

Other timed writing communities:

• Book in a Week
  
• Mad Challenge alternating between a novel in a month and other challenges.
  
• A non-novel writing spin-off is NaBloPoMo, National Blog Posting Month, which also occurs annually in November.
  
• Script Frenzy is a scriptwriting spinoff, for June of 2007.
  
• Naplwrimo (National Playwriting Month) encourages its members to finish an existing script or complete a new one in the month of November.
  
• NaNoMangO occurs twice a year, once in November and once in July, and challenges artists to draw thirty pages of a comic in a month.
  
• NaNoArtMo in January encourages participants to complete ten different art projects in a month.