This is fantastic work! I appreciate that you included Instructables.



To the points about who responded, which seem to be the crux of many of the comments: It's difficult for me to judge the seriousness of requests to run surveys on Instructables. We get a couple of these types of requests per month (from non-advertisers), and I usually suggest posting a forum topic rather than immediately offering to run house ads or something more visible outside the forums. The forums tend to represent the core Instructables audience and not reach casual visitors, who make up some 90% of our traffic. Since Etsy's traffic is around 2-3x Instructables, their higher respondent rate makes sense. On Craftster and Ravelry, the forums, or their equivalent, are the core of the site, so posting in them reaches a higher percentage of the total community. I would be very surprised if the respondent rate as defined by number of people taking the survey divided by the number that saw the request for a survey was drastically different across the various sites. Since it's now clear you are serious and are doing good work, if you're looking for more data, let me know and we'll work something out.



Finally, for more demographic information, be sure not to miss Quantcast. http://www.quantcast.com/instructables.com vs. http://www.quantcast.com/craftster.org can be enlightening as to why your data is so heavily skewed female.