The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Benson, E (1 member)
- Bente, S (1 member)
- Bernstein, J (1 member)
- Bertrand, F (1 member)
- Bihun, J (1 member)
- Biology (6 members)
- Biology: Visualizing Biological Mechanisms (0 members)
- Blotevogel, T (4 members)
- Boman, J (6 members)
- Book (10 members)
- Bottleneck (37 members)
- Bottleneck lesson (1 member)
- Brase, A (1 member)
- Breithaupt, F (1 member)
- Brink, P (2 members)
- Brose, A (2 members)
- Brown, A (1 member)
- Brown, S D (1 member)
- Bruni, C (1 member)
- Budach, C (1 member)
- Burkholder, J P (2 members)
- Business studies (3 members)
- Böttcher, A (3 members)
- Calculus (4 members)
- Calvert, V (2 members)
- Cameron, E L (7 members)
- Cassidy, K (1 member)
- Charlier, R (1 member)
- Chastain, D (1 member)
- Chemistry (2 members)
- Chistolini, S (2 members)
- Christian, N (1 member)
- Clark, J (5 members)
- Clark-Huckstep, A (1 member)
- Clarsen, G W (1 member)
- Clayton, P (2 members)
- Cole, B (3 members)
- Communication (2 members)
- Competence (1 member)
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- Computer Science (15 members)
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- Corrigan, P T (1 member)
- Costino, K (1 member)
- Cox, W R (1 member)
- Craig, K (1 member)
- Creative writing (1 member)
- Criminal justice (2 members)
- Cronin, J (1 member)
- Cross-disciplinary (6 members)
