1. Acebook
    For biplane enthusiasts
  2. Disgracebook
    For people whose parents and/or children don't respect them
  3. Placebook
    For anthropomorphic placemats. Zoomorphic placemats are tolerated, but feel out of place on the platform
  4. Without-a-tracebook
    For men who have faked their deaths, escaped - preferably by boat - and left behind a wife and children
  5. Replacebook
    For people who feel the need to substitute a pleasant electric shock for real life experiences