Cowboys rooting guide: Week 16 playoff position edition - Blogging The Boys
NFL playoff permutations for Week 17: Bills and Eagles to clinch No 1 seeds? Who is in the hunt for remaining wild card places?, NFL News
Packers Playoff Rooting Guide, Week 15: 49ers & Jets can help Green Bay - Acme Packing Company
History of how NFL playoffs have expanded
NFL Fantasy Playoff Challenge: Expert Strategy Guide
Week 16 Rooting Guide: Vikings loss to the Rams is a priority
Week 16 N.F.L. Playoff Picture: A Team-by-Team Guide - The New York Times
NFL playoff picture: Updated AFC, NFC standings for Week 16
The NFL Playoff Race Survival Guide - The Ringer