Cal Newport outlines the basics of how he reads when working on a project. According to Newport,
The key to my system is the pencil mark in the page corner. This allows me later to quickly leaf through a book and immediately identify the small but crucial subset of pages that contain passages that relate to whatever project I happen to be working on.
There are plenty of other explanations for the dampening of Google’s ardor [for Google Books]: The bad taste left from the lawsuits. The rise of shiny and exciting new ventures with more immediate payoffs. And also: the dawning realization that Scanning All The Books, however useful, might not change the world in any fundamental way.
But, interesting possibilities definitely remain on the horizon. While it remains to be seen what of those materialize, Google Books still provides a useful tool in its own niche area.
Adding these links in Zotero also has the helpful benefit of indicating which resources in Zotero you have in Logos. I’ve occasionally gone hunting in the library or submitted an inter-library loan request, only to find that—buried amid everything else in a previous Logos base package upgrade or library expansion—I already had the resource there.