NFL Explained: The year of the running back
NFL rules for dummies: The basics on how American Football works
Explain: The basics of American football - BBC Newsround
American football explained in this illustrated card deck
College football realignment, explained: A conference-by
The Non-American's Guide to American Football : r/CFB
The AAF's dramatic collapse, explained
SPORTS 101 // Guide to American Football
American Football Explained Badly By A Brit
How does Football Scoring work?
American Football Explained
Wide receiver positions: X, Y, slot explained - Big Blue View
American Football Explained: NFL in a Nutshell - Smaller Earth UK
How American Football Works