Writing a book has been slow going for me for a variety of reasons, but none is more prominent than the lack of access to a university library at the moment.
You think – we think – Google Books has digitized a vast amount of written material. And certainly they have. I'm sure the stats on what they have done would be staggering. When you need access to books that are outside of the most obvious 1% of written work, though, it goes dry very quickly. Academic work, older mainstream press books, less successful nonfiction books, books published in non-US publishing houses…it all becomes nearly impossible to find without having access to someone who can hand you a hard copy of it.
It mirrors most of the other functions of the internet in the way that it does an incredible job of providing the most commonly sought-after stuff for 99% of the population very well. You know, if you want the current top 40 songs every streaming service will gladly be like, ok here they are, but with ads. If you're looking for some album from 1951 though, or the latest non-mainstream releases, you're going to walk away frustrated.
Don't give up on libraries and hard copies just yet, folks.