I've recently tried to find something I know I bookmarked a couple of years ago, and failed miserably - my tags are not consistent, I don't remember the title words, can't find the same page with google, and I have hundreds of bookmarks per year (going back two decades now) which makes it infeasible to look at each of them, even if I narrow down based on titles.
There must be a better way; delicious / ymarks / etc do not seem to be helpful except to keep devices insync and to share/discover new sites.
How do you manage your bookmarks? Or actually, since bookmarks probably aren't the right solution, how do you manage your external memory of the web?
Choose categories wisely (not too narrow, not too general), be stingy on your bookmarking and tree-shake them often. Be consistent and it will require low maintenance.
It might help: https://github.com/galfarragem/superfolder