The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Fisher, M (1 member)
- Foltz, B (7 members)
- Fowler, D (1 member)
- Fricke, A (0 members)
- Froyd, J (2 members)
- Gasela, N (1 member)
- General (15 members)
- Geology (1 member)
- German, D (1 member)
- Gleeson, J (2 members)
- Glenn, D (1 member)
- Godkin, B (1 member)
- Gottschalk, T (1 member)
- Graphics (10 members)
- Grills, S (0 members)
- Grim, V (0 members)
- Group theory (0 members)
- Gunersel, A B (1 member)
- Gutjahr, P C (0 members)
- Hammer, S (1 member)
- Handelsman, M M (1 member)
- Haney,S (1 member)
- Health care (1 member)
- Heigl, N R (0 members)
- Heiland, D (1 member)
- Hermeneutics (1 member)
- Higgs, B (1 member)
- High School (2 members)
- Higher education (3 members)
- History (24 members)
- Hofberger, H (1 member)
- Hoffmann,F (1 member)
- Hovland, I (1 member)
- Hund, J L (1 member)
- Ifeoma, O (1 member)
- Indigenous studies (0 members)
- Innes, R (1 member)
- International studies (0 members)
- Isong, B (1 member)
- Issues (14 members)
- Itow, R C (1 member)
- Johnson, C C (1 member)
- Jones, A (3 members)
- Journalism (3 members)
- Junker, E (2 members)
- Jurgilė, V (1 member)
- K-12 education (2 members)
- Kaduk, S (1 member)
- Kautz, C (2 members)
- Kearns, K D (1 member)
