The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Schultz, K (1 member)
- Schäfle, C (2 members)
- Science Education (1 member)
- Scott,I K (1 member)
- Scott, J (0 members)
- Service learning (2 members)
- Set theory (1 member)
- Severinsson, E (1 member)
- Shadle, D (1 member)
- Sharp, A (1 member)
- Shep, S J (1 member)
- Sheridan Burns, L (2 members)
- Shopkow, L (7 members)
- Simpson, N (2 members)
- Smith, D (1 member)
- Social Work (1 member)
- Sociology (1 member)
- Somers,C (1 member)
- Speech (1 member)
- Stalheim, O R (1 member)
- Stanny, C (1 member)
- Stanny, C J (0 members)
- Statistics (6 members)
- Stickgold-Sarah, J (2 members)
- Stoller, A (1 member)
- Strome, S (1 member)
- Students as co-investigators (3 members)
- Sturts, J R (0 members)
- Sundt, J (1 member)
- Supple, B (1 member)
- Sustainability (2 members)
- Sweet,D M (1 member)
- Tamoliūnė, G (1 member)
- Tax (1 member)
- Teacher Education (4 members)
- Teacher training (4 members)
- Theater (3 members)
- Theology (1 member)
- Theory (1 member)
- Thermodynamics (0 members)
- Thomas, T (3 members)
- Thorndike-Breeze, R (1 member)
- Threshold concept (14 members)
- Thurner, V (3 members)
- Timmermans, J A (1 member)
- Tingerthal, J (2 members)
- Transcript (5 members)
- Treadwell, B (1 member)
- Trice, M R (1 member)
- Tucker, V M (2 members)
