I'd recommend checking out The Entrepreneur's Guide to Customer Development: http://custdev.com - It's a very practical guide to the first part of customer development and complimentary to Steve Blank's book and Eric Ries's Lean Startup Principles. I recommend it to every entrepreneur that I talk to (which ends up being hundreds a year!)
The Google Analytics code has now been removed from the embed. I took a quick look at the stats for our own ProductPlanner.com and didn't notice any dips as a result of the survey.io code. If anyone has any more details or ideas, please let me know.
Hi, This is Hiten from KISSmetrics / Survey.io - We do not know what is going on with this and have not heard of this issue before. We're taking a look at this issue right now. At the moment, we think it might have to do with the Google Analytics code on the survey.io embeds, so we will be removing the GA code from them shortly. If anyone has any feedback or ideas please feel free to shoot me an email: hshah at kissmetrics.com