Modular Map Tiles
All are meant to be printed at 150 pixels per inch. As with the cardboard miniatures, please feel free to use them for your own game sessions, art projects, and other not-for-profit pastimes. They'll work with any game that uses hexagons for a map grid; print at different resolutions if the grid doesn't match your existing maps.
Outdoor Tiles
I like to have a lot of the adventuring action outdoors, or at least above ground. I also like to have nice terrain on my playing surface; it goes well with the cardboard miniatures. I've taken to printing out these "mega-megahex" sized map tiles (49 hexes each), and arranging them in whatever pattern suits the moment. They stay together nicely when glued onto foam core board and cut out.
Palm Inn is a set of 7 mega-megahex tiles, representing the ground floor of a modest multi-room building, plus one rectangular tile for the second-story addition. It would be a good small inn, or a prosperous farmhouse, or something like that, although a farm probably wouldn't need three outhouses.
Underground Tiles
These tiles are intended for the classic "dungeon crawl" terrain, both with straight-walled corridors and rooms, and with rough stone or earth tunnels and chambers. They also include doors, trap doors, rubble, rats, and spiders. They fit into the outdoor tiles (the cave mouth tile is a good entrance), but they don't usually fill up the table in quite the same way.
Note that larger rooms can be made by printing out small and medium rooms, cutting them out carefully, and gluing them down onto foamcore or cardboard in the desired configuration. For example, two 5x10 rooms can be combined to make a 10x10 room.