I'm surprised I forgot these two.
Star Frontiers is alive and well at Starfrontiers.org. Then we have Starfrontiersman being added to the Resources list.
I also forgot Talislanta. No friggin elves!
Edit: I also forgot ZEFRS - the engine behind the old Marvel Superheroes Game, Conan and Gamma World 3rd Ed, all by TSR.
Kickstart Your Weekend: Maximum Mayhem Dungeons #7: Dread Swamp of the Banshee - Mark Taormino is living the dream. He is working on producing his next module in the Maximum Mayhem Dungeons series, this time it's module #7: Dread Swamp...
4 hours ago