This is really interesting. Some friends and I had trouble getting leads on who to "sell" our prototype to, and we had the thought that it may be an even more legitimate problem than the one we were previously trying to solve.
Can you comment more on the sell process to individual users with HN and Twitter: did you find and go after people that tweeted or posted about related topics to your products, or look for people that might want your products, or did you let them come to you through your posts or tweets?
The residual activity on Twitter from a #1 HN post is where we focused our energy, mainly by retweeting, engaging, following, etc. I think these HN posts also helped build our SEO and especially as some bloggers wrote about their experiences with our products.
Can you comment more on the sell process to individual users with HN and Twitter: did you find and go after people that tweeted or posted about related topics to your products, or look for people that might want your products, or did you let them come to you through your posts or tweets?