The Death Zap blog offers a set of free wargames rules for small unit combat. There’s also a fun battle report that goes with them.
science fiction
Full Thrust Starship Rules Wiki
I absolutely love the Full Thrust starship rules. If you can’t get enought of the rules, there’s now a Full Thrust Wiki.
Science Fiction Terrain From CD Spindles
We all knew that cds — especially those free ones you get in the mail — make great bases for terrain pieces. But who knew that you also could use the spindles. Here is a photo tutorial on using the spindles to make science fiction terrain pieces — such as fuel tanks, etc.
The site is in Spanish, but the photos speak for themselves.
Legends of Old Mars LotR LotOW Variant
Legends of Old Mars is a Edgar Rice Burroughs’ Barsoom variant of Games Workshop’s Lord of the Rings / Legends of the Old West game. I think that system is perfect for playing games involving John Carter, Tars Tarkas and the other denizens of Burrough’s Barsoom.
Warlords of The Wasteland
Marcus Reynolds offers Warriors of the Wasteland, a set of skirmish level science fiction rules that he devised when he became tired of the shenanigans of a certain miniatures gaming company who shall remain nameless but whose initials are GW.