Shared Epic is a collaborative storytelling process. The original Shared Epic was started by Nick Ruffilo, Gabs Roman, and Andrea Corbin. It uses a Google Doc to allow readers to comment while the story is being written. For a story to be considered a shared epic, it needs to be written by two or more authors and passed between them. Each author writes a scene then passes to the next author.
Shared Epic launched on August 14th 2013. As of today, there are no other Shared Epics. Go write one and e-mail nickruffilo (at) gmail.com with the link and we'll be sure to add it here.