Thanks, Elaine. You don't have to be on Twitter to participate.
I do share a lot of info on Twitter, plus tips and teasers as the judges and I go through the entries...and there's a daily discussion prompt there, but you enter through a Google form.
I do have a Facebook group to share reminders, info, and right now groups are forming for genre-oriented ranking parties to help participants figure out which manuscript to enter. Here's a link, if you're interested (but FB isn't required either).
https://www.facebook.com/groups/689893392456709