Playing Ball— good advice on how you can enhance the enjoyment of everyone at the table.
Zombie Nirvana, a weblog with interesting downloads. The d20 CE seems like a Perfect 20 attempt, but it might have other stealable stuff.
Transitioning to Collaborative Roleplaying. An article about gradually sharing the GM’s responsiblities around the group.
Collaborative Campaign Setting, a huge world where everyone contributes independent bits. Hardwired d20, but it’ll be interesting to see what happens.
From “Frame me a scene”, great ways to frame a good scene.
The rule of three about description in RPGs; used by Zelazny when writing. You can extend that idea, such as: Detailing planets like Lucas does in Star Wars: “Pick a dominant color. What does the society seem like on the surface? What is one thing it defies expectations?”
Quirky alternate character generation for Amber diceless. Very parlor game like… it’d probably take a while, but it could be very cool. (Part one of a larger, not yet ready system.)