How To Get Started Playing Old-School D&D For Free ~ Dungeons and Possums
: A good summary of free options to get going.
The Basics of Role-Playing Games
Campaign Wiki: Submit a new link
, an illustrated guide to how to identify the editions of D&D
D&D Retroclones - Taxidermic Owlbear
Dispatches From Kickassistan: Managing Player Expectations
Goblin Punch: OSR-Style Challenges: "Rulings Not Rules" is Insufficient
Hack & Slash: Blog Index
Hack & Slash: On Resurrecting the Quantum Ogre and Having Him Over for Tea
: Be open about traps, mistrust, information and all that.
Lithyscaphe: Principia Apocrypha: Principles of Old School RPGs, or, A New OSR Primer
Matthew Finch's Quick Primer for Old School Gaming (free download from Lulu)
Necropraxis: Suggested Reading
Philotomy's Musings (PDF)
Ten Foot Polemic: Party Upgrades in a Deadly Campaign
: Meta gaming is not a problem. Player knowledge is part of the fun in a long campaign.
What are assumptions about how to play an OSR adventure that you think might not be commonly held as desired?
: a thread rescued from Google+
Definitions of Standard D&D Terms
The Alexandrian on Hit Points
Quickly, Quietly, Carefully: What do hit points represent?
Use of the Word “Level”
Old School RPG Blogger Advancement Level Titles
Order of the Stick satire on the multiple uses of the word "level"
How to Use the Dice
The Alexandrian » GM Don’t List #2: Rolling to Failure
Cyclopeatron: Simple Multi-Ability Checks
Delta's D&D Hotspot: Testing a Balanced Die
Goblin Punch: Game Design: When To Be Random
Hill Cantons: Attribute Checks- The Simple Route
Necropraxis: Let It Ride or Push Your Luck
: In Push Your Luck play, the number of attempts is not limited but risk attends each try.
Troll Dice Roller and Probability Calculator