An excellent question. I haven't done any market research apart from informal polling of friends, which has been moderately positive, and familiarizing myself with similar products that are already published. If my primary goal had been to make money I would have taken a different approach, but this particular project was especially appealing to me for a few reasons I could go into if you're interested. :)
I too would welcome posts from any experienced marketers at LW.
This is the supposedly-bimonthly-but-we-missed-April-and-June-2013 'What are you working On?' thread. Previous threads are here. So here's the question:
What are you working on?
Here are some guidelines: