Neat. Could anyone give me some ideas how else the author could monetize this without normal ads? Also, what would be the gain if he did normal ads?
So I did in the end apply to Google AdSense just to find out. Turns out the site didn't get approved because it didn't have enough content on it. So I think you would be hard pushed to monetise it quickly by going down the normal display ads route. I didn't mention in the post, but I had a couple of random ad offers, but they were for things that I didn't really agree with so didn't take up any of the offers.
How is it possible that it's not you again who posted this on HN?