In 2011 I launched a side-project called hackerbooks.com (wayback machine link https://web.archive.org/web/20110305143421/http://www.hackerbooks.com/ https://we

In 2011 I launched a side-project called hackerbooks.com (wayback machine link https://web.archive.org/web/20110305143421/http://www.hackerbooks.com/ https://web.archive.org/web/20110305143421/http://www.hacker...). It got a fair bit of traction. Out of my memory, Amazon affiliate links only earned me something like $30, total (I had other sources of revenue via targeted ads, which earned a bit more, but not much).