As a GM, if I were running something like Pathfinder I'd use it during the game to tell the players where they can look up the rules for whatever random thing they've found/were asking about/got affected by/etc. in their physical books or PDFs. Not all players are going to use electronic devices, much less Realm Works, so it helps if you can give that to them easily.
Thank you, Parody. Your expansion on my requests makes it even more useful.