That's a nice plan. I hope you succeed.

I would love personalized recommendations as well (something that a person working at a book store could perform). That is, you've read and liked A, B and C, have you also read D? Or something like: "You've read many books by author X, he just released a new book".

In that regard, I would also like to know the sequences of books that people read to get involved in a given topic. What are the books to enter a field? What books should you read after you've dipped your toes in?

I'm developing algorithms for these kind of tasks. Get in touch if you want to discuss it.