Fundamentals of Technology Roadmapping, developed by Sandia National Laboratories
http://www.sandia.gov/Roadmap/home.htm

Office of Industrial Technologies, Department of Energy. 
Main page for the Industries of the Future program, which has done roadmaps for several industries.
http://www.oit.doe.gov/industries.shtml

Aluminum
http://www.oit.doe.gov/aluminum/visions.shtml

Materials
http://www.oit.doe.gov/chemicals/visions_mat_tech.shtml

Metalcasting
http://www.oit.doe.gov/metalcast/pdfs/roadmap.pdf

Steel
http://www.steel.org/mt/roadmap/roadmap.htm

Integrated manufacturing technology roadmap project
http://www.osti.gov/inforum99/papers/merrell.html

Technology Roadmaps: Implications for Innovation, Strategy and Policy - a dissertation proposal by Bob Shaller on the semiconductor industry
http://www.iso.gmu.edu/~rschalle/rdmprop.html

Bob Shaller's Master Roadmap Bibliography (a comprehensive information source for roadmaps as of 1/2/99)
http://mason.gmu.edu/~rschalle/master.html

US Car industry - technology developments for the Partnership for a New Generation of Vehicles (PNGV)
http://www.uscar.org/pngv/technical/index.htm

21st century Truck Program
http://www.osti.gov/hvt/21stcenturytruck.pdf

National Compound Semiconductor Roadmap
http://server4.csci-va.com/ncsr/default.htm

Industry Canada Technology Roadmaps
http://strategis.ic.gc.ca/epic/internet/intrm-crt.nsf/vwGeneratedInterE/Home

Building the Electronic Industry's Roadmaps (in Japan)
http://itri.loyola.edu/ep/c2s1.htm