paidmembers: Information specific to paid members: sneak peeks at new features and special LJ-specific account offers.
lj_releases: A running list of all changes to the site, bugfixes and enhancements.
lj_maintenance: Messages from our Operations staff about downtime -- planned or unplanned! -- and scheduled maintenance.
lj_feedback: A place for us to solicit opinions by posting polls, surveys, and questions.