That's pretty impressive. If you don't mind me prying, how long did it to take to rack up those earnings (guessing 2 months since it was posted) and where did most of your traffic for that post come from (rss subscribers vs search engine referrals)?

1 month. Amazon takes a while to deliver payment, and I just got my first payment a couple of days ago. However, earnings went way down after the first month. This month I only made $17.

HN was the biggest source of traffic, followed by reddit. A bunch more came from twitter, facebook, google+, as people shared the article.

Still a nice bonus for taking the time write some original content. Thanks for sharing the info.