4 links
Baltimore & Ohio Railroad Photo Tours
trainweb.org
Virtual photographic mile-by-mile tour of the Baltimore and Ohio, now CSX, Railroad routes in Maryland. Historical descriptions with each photo.
BWI Airport
bwiairport.com
The Baltimore Washington International Airport serves residents and travelers in the Baltimore/Washington Corridor. Includes flight status, directions and parking, customer service…
Maryland Aviation Project
map.umd.edu
An effort between the University of Maryland and the state’s aviation industry to create a knowledge base of supply chain management, technology, and management practices.