Legacy "Butt Really" Campaign
UCSF Center for Tobacco Control Research and Education
Legacy Tobacco Documents Library
Earth Resource Foundation
Americans for Nonsmokers' Rights
Ocean Conservancy
Surfrider Foundation
Tobacco Products Liability Project
Center for Law, Energy and the Environment
Public Health Law and Policy Technical Assistance Legal Center
Tobacco Law Center at William Mitchell College of Law
Hazardous Waste Classification in California
Center for Disease Control and Prevention
Clean Virginia Waterways - Cigarette Butts as Litter
WhyQuit.com - Tobacco Litter
Chesapeake Bay Foundation - Save the Bay
California Coastal Commission
Californians Against Waste