I'm a diehard fan of classic bookmarks. I tried pinboard, pocket, and other services, but for me the browser bookmarks with some form of organization works best. I like and use all Chrome shortcuts and nifty features for bookmarks, and even if the browsers seem to be going into a different direction (see Chrome's "smart" bookmarks), as the saying goes they will have to pry them from my cold, dead hands.

(At the moment I have 519 bookmarks in 73 folders)