On Board Game Geek, there’s a nice set of instructions on making high quality circular counters.
The Miniature Wargaming Editor
High Crusade Science Fiction Rules
High Crusade are a set of free wargames rules for 15mm / 25mm science fiction games.
Wrath of the Gods Fantasy Skirmish Game
Wrath of the Gods is a set of free wargames rules for skirmishes with a classical mythological flavor.
New Crobuzon RPG Setting
I’m a big fan of the work of China Mieville. His stories are highly imaginative, and like nothing I have ever read before. Here’s an attempt by one fan to create an RPG background based on his New Crobuzon setting.