We'd still need librarians to do the work at the physical libraries, and they're always going to be the better people to ask. They're not just people who like books; there is a lot of studying and training to be a librarian - I know 2, and they're both among the smartest people I know, and definitely the most well-read. I'd go to them for a book-related question before I do anything else.

It's not as convenient as just typing something up online, but that's kinda the point. Unchecked pursual of convenience is what got us here - do the tried and true thing that takes a bit more effort, and you'll be surprised at how much better it works than the convenient option.