Hi, I run a website at: http://www.nesmaps.com
I make labeled and background maps for many NES games including Zelda, Super Mario Bros., Metroid, Final Fantasy, Dragon Warrior, Contra and many others. So far I have maps for about 40 NES games on my site. In addition to maps, I also have many sprites and animated sprites for NES games. I also sell posters of maps for anyone looking to decorate their game room.
If you check out my site let me know what you think of the maps, and if you have any suggestions.