news.com: Five countries send 99 percent of spam

jugendschutz.net

Offers of drugs, particularly Viagra, accounted for about one-third of global spam messages sent in the first half of 2004, according to a study by Commtouch, a company that sells antispam products.[...]
China, South Korea, the United States, Russia and Brazil host more than 99 percent of all Web sites mentioned in spam.