http://en.wikipedia.org/wiki/Structural_steel

http://www.answers.com/topic/structural-steel

http://www.aisc.org/

http://www.structuralsteel.in/

http://cic.nist.gov/vrml/cis2.html

http://www.livingsteel.org/structural-safety-10

http://www.osha.gov/SLTC/etools/steelerection/structural.html

http://www.structuralsteelco.com/index.htm

http://www.greyhawk.com/news/technical/Design_Structural_Steel_Design_and_Construction.pdf

http://www.shyamsteel.com/products_ss.asp