This is like Hacker News Book [1].

But, it scraps user comments that contain Amazon book link from HN and orders them by theirs point. If you wonder how much money Hacker News Book has been made, I would suggest to read this post [2]. The different part with this is that Hacker News Book shows not only the most mentioned books all the time but also per week. Hacker News Book has more diversity of book topics since HN is not limited for programming discussions.

Anyway, I just want to say congratz to the OP for launching this. I think you miss "Show HN" on your post title.

[1]: http://hackernewsbooks.com/

[2]: http://hackernewsbooks.com/blog/making-1000-dollars-in-5-day...