Hey, Firstly congrats. Getting your first app "out" is hard. You seemed to do that with flying colors :) What's the technology behind the site? Do you have a blog? I'll love to hear more send me an email (my HN username at gmail.)
I built it on Rails. After building out a good amount of functitonality in PHP I decided to take a chance with Rails. Amazing decision as it was a huge return for the time investment (45-ish hours to learn). I don't have a blog, as blogs don't seem to have that much worth in terms of marketing unless they are amazing. I'm opinionated, sure, but you can find most of those opinions on Signal vs Noise :)