The Character For Every Game Blog offers some really neat dungeon geomorph tiles, as well as a few nice complete dungeons. Plenty here to look at.
role playing games
Creating A Fantasy Sandbox
Rob Conely of A Bat In The Attic blog has written a document on making a Fantasy Sandbox.
Old School D&D Record Sheets
If you’re of a certain age, you’ll remember the incredibly dense Armory D&D record sheets. You can get a pdf of them here.
Nights of the Crusades RPG
Nights of the Crusades is an RPG that’s gotten lots of good reviews. The good news is that the pdf is free.
Platemail RPG
Platemail is a free RPG based on the seminal Chainmail wargames rules. The Book of Magic is here.