The Collaborative Writing Challenge (CWC) coordinates novels that are written together by dozens of authors. Unlike other collaborations, the authors have no contact with each other and rely on a story coordinator to steer the story. 4-5 authors attempt a new chapter each week until you end with a finished novel. Many writers sign up for multiple chapters to try in order to increase their chance of being chosen and getting some writing credentials to bolster their writing resumes. Go to the website to find out more.
Sign-ups for the whole project and the submission window for potential first chapters are going on RIGHT NOW so go sign up!!!