Maryland

Geology of the Sideling Hill Road Cut.   A neat site describing "one of the best rock exposures in...the entire northeastern United States."  Includes excellent diagrams and references.  By David K. Brezinski of the Maryland Geological Survey.  [ccr]
http://www.mgs.md.gov/esic/brochures/sideling.html

Tour of Annapolis.  A map based site with descriptions and a few photos of a number of sites in Annapolis.  Includes some ads and promotions.  [ccr]
http://www.hometownannapolis.com/tour_oldtreasury.html

Postcards of Caroline County.  Dozens of images organized by town, including Denton, Federalsburg, and Greensboro.  Postcards are from the Francis A. "Sonny" Callahan Postcard Collection.  Site created by the Caroliine County Public Library.   [ccr]
http://www.caro.lib.md.us/postcards/index.asp