All surveys are completely anonymous, and I have no way to determine the identity of visitors. For example, I don’t even collect information about IP addresses. I don’t collect any personal information about visitors to this site.
I do use Google Analytics to gather data about web traffic statistics, but nothing in that would enable me to determine the identity of visitors to the site.
There are two kinds of surveys on this site. The first are the journal surveys. These surveys are run by Google Documents. There is also a demographic survey for the site. This survey is run by Burst Media.