Welcome to ECF Samuel.
If you go to this page on the CASAA web site and scroll down, you will see a list of
Population Surveys. I suspect that the survey administered in March 2009 was the one put together by the
tobacco Harm Reduction Organization, aided and abetted by James Dunworth of the UK.
Heavner K, Dunworth J, Bergen P, Nissen C, Phillips CV. Electronic cigarettes (e-cigarettes) as potential tobacco harm reduction products: Results of an online survey of e-cigarette users. Tobacco Harm Reduction 2010: a yearbook of recent research and analysis. A production of TobaccoHarmReduction.org.
Heavner was one of the earliest ones. The most recent one that ECF members participated in is Etter & Bullen. You can link to the results of each of these surveys. In some cases, we can link you to the full report, but in others we can only take you to the abstract of the work. (The medical journals like to charge big bucks for permissions to access the full article.)
Casaa.org - Harm Reduction