Just my 2 cents....
I link all my source materials to my Google Drive which is private unless I share it with a particular person.
So if Player A is allowed access, he follows the link and get's the book displayed in Chrome (fair use, I have download disabled, It's the same as handing a book to someone to look up a rule). If Player B is new to the group and I haven't shared access, he'll click the link and get access denied.
If Random Stranger on the Internet A does a search for a book in my library, then they'll get nothing from my library. Completely hidden, unless I give you access.
That's how I use it anyway.
As to the page reference...that's awesome.... And I've seen it in a couple of character gen programs like Chummer 4th ed, where you link your pdfs and the program can open the book to the right page.
But that's a LOT of work to replicate in RW, so I might do it for something unwieldy like a crazy scene with special IF/Then's in it, but 9/10 times, I'll say "ultimate equipment p. 93" in my snippet and the source will tag "ultimate equipment". Click the link, opens the source, click the source link and page down to 93.