The National Film Registry Official Site
The National Film Preservation Board
The NFR on Wikipedia
America’s Film Legacy (author Daniel Eagan’s website)
Choosing the National Film Registry (2015 article by Daniel Eagan)
Dave Kehr on the first year of the NFR
The NFR YouTube Channel
Over 70 NFR titles streaming on the Library of Congress website
National Film Preservation Foundation (13 Film Registry titles streaming online)
Additional NFR titles available online
Benjamin Wilson’s near complete list of Film Registry titles on YouTube
The NFR Completist Blog
Another NFR blog
You’re Missing Out: A National Film Registry Podcast
The NFR on filmsite
The NFR on Classic Movie Hub
Nominate your choices to the Film Registry

Home video release date sites:
The Digital Bits
DVD Beaver

Online DVD/Blu-Ray Disc rental outlets:
Odd Obsession

These Amazing Shadows (2011 documentary about the Film Registry):
Official Site
PBS Site
Purchase the PBS DVD from Amazon
Purchase the PBS Blu-ray Disc from Amazon