From time to time, we will post a "writing challenge" -- i.e., a challenge for writers to fulfill, to write a story in accordance with the guidelines set out by the writing challenge. It will work sort of like a contest, with writers submitting fan fictions in response to the challenge, and the best ones will be archived. To submit in response to a writing challenge, one simply needs to select the correct writing challenge in the For Writing Challenge field; one can also search by the challenge to find fan fictions that were archived in response to that writing challenge.