The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.

• Advanced Help (12 members)
• All Boxes (102 members)
• All Folios (94,198 members)
• Box012 (1 member)
• Box 001 (794 members)
• Box 002 (910 members)
• Box 003 (1,446 members)
• Box 004 (1,387 members)
• Box 005 (290 members)
• Box 006 (246 members)
• Box 007 (165 members)
• Box 008 (567 members)
• Box 009 (530 members)
• Box 010 (912 members)
• Box 011 (960 members)
• Box 012 (1,230 members)
• Box 013 (718 members)
• Box 014 (1,020 members)
• Box 015 (1,628 members)
• Box 016 (254 members)
• Box 018 (192 members)
• Box 023 (511 members)
• Box 026 (374 members)
• Box 027 (351 members)
• Box 028 (600 members)
• Box 029 (244 members)
• Box 030 (193 members)
• Box 031 (604 members)
• Box 032 (316 members)
• Box 034 (794 members)
• Box 035 (878 members)
• Box 036 (836 members)
• Box 037 (974 members)
• Box 038 (848 members)
• Box 039 (564 members)
• Box 041 (1,055 members)
• Box 042 (1,814 members)
• Box 044 (402 members)
• Box 047 (932 members)
• Box 050 (396 members)
• Box 051 (1,878 members)
• Box 052 (1,216 members)
• Box 054 (410 members)
• Box 055 (670 members)
• Box 056 (596 members)
• Box 057 (840 members)
• Box 058 (886 members)
• Box 060 (366 members)
• Box 061 (610 members)
• Box 062 (1,130 members)