A survey of websites with floorplans, maps, and paper miniatures:

• http://www.jsr.com/~fitz/roleplay/props/
  
• http://www.geocities.com/TimesSquare/Chasm/9223
  
• http://www.geocities.com/TimesSquare/Cauldron/1988
  
• http://microtactix.com/new/fun.shtml
  
• http://www.io.com/~sjohn/sparks.htm
  
• http://tamerthyra.freeservers.com/25mm.html
  
• http://nav.webring.yahoo.com/hub?ring=deckring&dist
  
• http://www.geocities.com/Area51/Keep/6762/maps/maps

(Not linked, because they're probably all dead or moved by now.)