- hack/ has produced some neat RPG bookmarklets. I've mentioned bookmarklets as game tools before and these provide dice rollers and character generators for D&D, Call of Cthulhu, Hackmaster, Classic Traveller and WHFRP.
- Dino Pirates of Ninja Island combines dinosaurs, pirates, ninjas, monkeys and robots with adventure into an intriguing whole. A Creative Commons license lets you add to the game setting - the rules and lots of content is free. There's also an introductory adventure for $6. Courtesy of Scratch Factory.
- Engines & Empires is a free PDF steampunk sourcebook for Labyrinth Lord courtesy of Relative Entropy Games - the Relative Entropy site also has free resources and nicely priced print copies.
- Those running d20/OGL games will like The d20NPCs wiki which has a searchable list of pre-generated NPCs for both fantasy and modern games.
- More d20 fantasy generators are found at Myth Weavers including an updated version of the random dungeon generator originally coded by Jamis Buck.
- Dream Weaved Worlds offers some generators for barrel and crate contents, name generators and the taverns & inns random encounter generator as well as d20 fantasy and sci-fi resources.
- What's in a name? Chris Pound's Language Machines provides names for people of many types including Barsoomian and Tsolyani, Dying Earth spell names, martial arts moves worthy of Feng Shui or Exalted and has a wonderful list of name/word generation resources.
- CrystalBallSoft has a random fantasy city generator which can handle any settlement you'd find in the older editions of the DMG (thorp, hamlet etc.) It outputs based on D&D data and takes into account some nice touches.