Chgowiz has posted compiled pdfs of the more than one hundred (!) entries he received. The maps run the gamut of types and styles imaginable, but the sheer diversity of the entries is incredible. If you are looking for a location or a small dungeon to slip into your campaign, give them a look.
Without further adieu:
http://oldguyrpg.blogspot.com/2009/0...test-pdfs.html
(Note, most of the entries are either use no rule set or are for OD&D/AD&D, so if you are using 3.5 or Pathfinder or some other ruleset, some conversion work may be necessary).