Northwestern University Transportation Program
Northwestern University Transportation Center
U of Illinois (Urbana) Department of Urban and Regional Planning
Northwestern University Infrastructure Technology Institute
Northwestern University Traffic Institute
National Transit Institute
Institute for Transportation Research and Education
Texas Transportation Institute (Texas A&M University)
TransWeb (San Jose State University)

Libraries
US DOT Library
Georgia Tech Virtual Civil Engineering Library
Harmer E. Davis Trans Library (UC - Berkeley)
IISTPS Library (International Institute for Surface Transportation)
Infrastructure Technology Institute Library Services (Northwestern University)
Northwestern University Transportation Library
Minnesota Transportation Libraries
National Transportation Library
University of Hawaii Transportation Library
Virtual Transportation Library
Washington Department of Transportation Library