starfleetdb

C
Cloaking Device
Cloaking Technology Update I
Cloaking Device Update II

D
Dyson Sphere

F
Federation, the State of the, Circa Stardate 5100

G
Galen, Professor Richard 

H
Hansens and the Borg: A Report

O
Omega Directive
Omega Directive II

P
Prime Directive
Progenitors Update I

R
Rules of Acquisition, Ferengi

S
Spacedock Size Comparison
Starfleet
Starfleet’s General Orders

T
Talos IV Onscreen Report 
Temporal Investigations Agency
Timeline 1992-2156
Timeline 2160-2233
Timeline 2236-2261
Timeline 2261-2263
Tracey, Captain Ronald, Starfleet Dishonorable Discharge of

U
Uniforms, Officer (TOS Movies/Starfleet)
Uniform, Enlisted (TOS Movies/Starfleet)
United Federation of Planets
United Federation of Planets Member Listing

Thanks go to
J.D. Loughead for some of the informational GIFs here.