• A survey of paleoclimatology (NASA)
• Canada: exposed areas in the Grand Banks in the mid-Atlantic (check in the links for the maps) during the glaciations.
• See also coastal Maine areas exposed in that period.
• The Missoula Floods: A map and descriptions (USGS) and material on Lake Bonneville. (map) Ditto Lake Lahontan in Nevada.
• Migrations into North America; see also here and here.
• World migrations of humans against a glacial map.
• Map of Paleolithic Japan (linked to mainland, migrations shown)
• Glacial land environments (ORNL)
• World climate changes movies and animations (NASA)
• Ice age maps and details on the British Isles
• Maps of North Eurasia during the Glaciations (interesting for the huge melt lakes) and more from a Russian Ice Age museum
• Various Illinois maps, including glaciation stuff
• Glacial North Dakota
• Ice Age Phillipines
• Glacial New York State coastline (maps)
• Global Marine Relief maps generated (very neat)
• Exposed land via Ice Age sea level drops (many maps)
• Interesting material on Missouri changing landforms, including New Madrid changes and seabeds.
• The creation of the English Channel by flood and earthquake. And a BBC mention.
• Earth and planetary maps; there’s a full glacial one that is interesting.
• The global meltwater pulse.
• An animated rotatable Ice Age era globe.
• A book: World Atlas of Holocene Sea-Level Changes

More speculative stuff:

• Map of a journey to Fusang (China to North America)
• BBC2: Stone Age Columbus and some speculations
• General listing of interesting historical maps
• Graham Hancock and his book on flooded civilizations and more here.
  
• More on drowned towns, etc at the end of the ice age
• DNA Migrations and haploid group distribution
• PBS on Megafauna extinctions and Before Clovis (neat flash map of North America)
• Flood maps from raised sea levels (base of the present levels, run though Google Maps API)
• Highly speculative notions here, but the maps are great…
• Strange Maps blog (good for lots of things)
• Woohooish stuff about Neanderthals intermixing or still around, but an interesting read.
• Similarly woohoish stuff about Kerguelen as a continent. Ditto this stuff.
• Alternate locations of the poles causing various climate changes, lots of maps.
• http://www.roperld.com/HomoSapienEvents.htm