Digitizing and indexing only solves part of the problem. The real problem is the lack of search skills, even among people who think they know how to search for things. There is also the knowledge that some databases are better for certain subjects because there isn't one "omni-database" that has a representative amount from all subject areas.

I can highly recommend "The Oxford Guide of Library Research" by Thomas Mann.

I had no idea how many different ways to research a library there are. Or how many of them are not available in my local university library, because the research interfaces have been dumbed down.

Mann is not a fan of the Internet and its reduction to a single search box.