European Commission (regulations) - http://europa.eu/
Tobacco BBS - www.tobacco.org/
History of Tobacco - http://www.lib.ncsu.edu/exhibits/tobacco/thistory.html
Tobacco Info (University of Tennessee) - tobaccoinfo.utk.edu
Virginia Tech Extension Services - www.ext.vt.edu/
ITGA (International Tobacco Growers Association) - www.tobaccoleaf.org/
Entomology - http://entweb.clemson.edu/index.htm
Tobacco Merchants Association - www.tma.org
Association pour la Recherche sur les Nicotianées - www.arn.asso.fr
Imperial Tobacco - Tobacco Institute of Bergerac - www.imperial-tobacco-bergerac.com
University of Kentucky - www.uky.edu/Ag/Tobacco/