I like online resources for research - who doesn't? And occasionally, I stumble across a new one, which is always a nice thing.
My most recent discovery happened because a colleague was searching for a specific article, published as part of a book, that I thought sounded interesting. So I checked my own library database, but of course it was not in there. Then I did a bit of a search on the 'net, and there was a link to the Internet Archive (which you might know through the WayBackMachine, which I can totally recommend if you want to look at websites that once were but are no more today) and, more specifically, to their lending library thing OpenLibrary.org - where you can virtually borrow digital copies of books. Quite a lot of books, actually, including the one in question that my colleague was looking for.
Borrowing works if you have a free log-in for the Internet Archive, and then you can read for one hour in the book in question, with automatic extension as long as nobody else wants to read it. Some things can also be borrowed to your e-reader for a 14-day period.
So in case you're running out of things to read... you might find something there. I hope you have fun!