I never stopped using RSS but its always been an additional source not the sole source of info for me. A lot of folks I've followed on various social media or who write for online mags have a personal site where they post long-form stuff. RSS is great if you want to just get a list of those authors latest posts and you don't want to sort through thousands of other stories to find them.

Personally I like using the Livemarks add-on in Firefox because I'm already in the browser anyway and I can manage those bookmarks using the standard bookmarks manager to keep them in any organizational structure I find convenient. Here's the github page but you can search for it in Firefox Add-ons as well: https://github.com/nt1m/livemarks/