Camera Reference:
Cannon T3i

Sound Reference:
Zoom H6 Usage Guide
IDA Minimal Doc Audio Setups
General Practices

Sound Editing Reference:
Cleaning up Noisy Audio in Premier
Adobe Audition Audio Cleaning

Documentary Genres:
National Film Board of Canada Genres
Documentary Genres
Interactive Documentary

Documentary Film Festivals:
DocPoint
True/False
MoMA Doc Fortnight
Full Frame
HotDocs
Visions du Reel
AFI Docs
Hot Springs
Sheffield Doc Fest
Sundance
IDFA

Documentary Film Funding: 
American Documentary Filmmaker Resources

Additional Links & Resources:
Keno Eye Documentary Resources