The horror you promote is up to you, meaning whatever you think is worthy--as long as you can explain why--is perfectly acceptable. If you choose to promote something you've created, be sure to include links, images, videos, and anything else to spread the word!
You may choose more than one date, but please be considerate of others signing up, and try not to pick dates that fall in the same week.
Once you've got what you'd like to promote put together, send the information in an email to firstname.lastname@example.org.
Happy October, and thanks for participating in the most horror-able month of the year!