PMA (Photo Marketing Association) and Dpreview have an amateur photography survey going on. In case you haven't already seen it:
http://www.dpreview.com/news/0909/09092103PMAsurvey.asp
A photography survey from another forum for a masters dissertation:
"I'm a student, faculty of film and photography and I would like to ask you to complete a questionnaire. The questionnaire is short and I promise it will take you not more than a minute to complete it. It will help me to write my master's dissertation. Link to the website is below:
http://www.paxonta.com/index.php?cId=ae42b1fb3e1bd355be18ed827a32be940b9093de&pid=133
Thank you very much. Enjoy taking your pictures.
Best regards.
Mary M"
Since we can't make our own surveys in this forum I thought I'd share these.