Advertised payment and shipping practices of Internet cigarette vendors before and after the 2005 credit card and shipping bans.*

*The credit card ban was implemented in March 2005 and the shipping ban in November 2005.**Refers to 50 most popular vendors in January 2005, which were used for the ICV website traffic analysis. 13 of these vendors were new to the sample in January 2005, and by January 2006, 14 of the top 50 vendors had gone out of business.†Denotes banned payment or shipping methods.††The number of vendors shipping via USPS includes vendors shipping via international postal services which would ultimately be delivered in the US by USPS.