Kudos! Loads superfast and well designed. I am curious about how to build a site like this? Could you shed some light on the stack used (frontend/backend)? I couldn't find anything immediately in the HTML like bundle.js or something similar.
Do you parse every comment, and then look for book names?
I'm curious - how do you detect a book mention if, the first time it's mentioned, there's no link to Amazon? Do you use spaCy for NER and then use an API to check if the entity is a book name?