The Portable Wargame is a sort of mini-movement in the community: a series of user created rules for games based on checkers boards. They all look interesting and fun. Here are the rules for the modern version.
Miniatures Rules
Cult of Ulric Warhammer Army
Cult of Ulric is a new Warhammer Fantasy fan-made army sourcebook. It’s very professionally done.
Hearts of Tin Horse and Musket Rules
Ross Macfarlane offers Hearts of Tin, a set of simple Horse and Musket rules:
Atmospheric Wargaming Photos
Here’s an impressive set of Flickr photos with atmospheric Warhammer 40K images.
Bushido New Dawn Rules
Bushido New Dawn is a set of free wargames rules for Japanese Fantasy/Myth skirmishes.