A few careful thoughts about the utility of "web marginalia", in this case for discovery; things like blogrolls, feed lists, and webrings. John wonders if their demise is in part due to the loss of sidebars as responsive design/smaller viewports became the norm. I'm not sure I fully agree; I feel like most of the loss is due to the "brandification" of the web and the removal of personal space (and personality) alongside it. But regardless, I absolutely love this way of phrasing that thought:

Websites have been wind tunnelled, the edges stripped. The interesting sidebars and columns where once you would wander into new ideas from other minds have fallen far from view.