AEGIS ENGINEERING
Seismic
http://earthquake.usgs.gov/hazards/designmaps/buildings.php (Seismic Java App)
http://zip4.usps.com/zip4/citytown.jsp (Zip code lookup)
Montana Snow Load
http://www.coe.montana.edu/snowload/ (Montana Snow Load)
Industry
http://www.asce.org/ (ASCE)
http://www.aisc.org/ (AISC)
http://www.concrete.org/general/home.asp (ACI)
http://www.cement.org/ (PCA)
Bridge
http://www.transportation.org/ (AASHTO)