Links to Deviantart have been posted here before, but the site never ceases to amaze me with the sheer amount of budding artists willing to post their work (some of whom are quite talented). Luckily for the guild, there are two that are skilled cartographers as well.
The first is Chanimur at http://chanimur.deviantart.com/gallery/ who posts both alternate history maps as well as maps of his own creation. Take a look at his maps of Tarrune, Soulless, and Farasia--the maps are both impressive and done in different styles.
The second is a mapper by the name of Fred73fr at http://fred73fr.deviantart.com/gallery/ who works primarily in pen and ink. He does maps for the French version of the Midnight RPG from Fantasy Flight Games and his creations for it are quite sharp. Take a look at his dwarven villages and tunnels as well as his City of Cambria map (all on page 2).
I know pretty well that frog man, Fred73fr. Probably because ... it's me :P
Dain wasn't available on DeviantArt so ...
I have also tried to find good stuff from there and put them in "favorites". There are some amazing maps, especially the hand made ones.
I'm currently working on a city map and a dwarven underground city. I will post them both here when finished, of course.
I must confess that the style of Aerius (go find him on this forum) is my favorite.
Have a look at this:
BTW, I introduced myself there:
Whenever you find a talented cartographer at deviantart, you should invite them here ;)
Dain, cool work. If you don't mind, I would like to use the Tunnel and possibly bridge as "handout" images in my home campaign. I know they are CC, but I always like to ask anyway.
Go for it ;)
I have made them available for that purpose