I've started tagging my bookmarks, by simply adding a bunch of words that I associate with a page behind the bookmark name in parentheses. So for example, I might add "(open source svg icon fonts font set)" behind the bookmark name for this.

9 out of 10 times I can easily find the bookmark I'm looking for, by entering a few of those words into my bookmark search and/or address bar, and it doesn't require any special extensions or services.

I use Chrome, predominantly. At least, for my bookmark library. When you save a bookmark in Chrome, it defaults to using the page title as the bookmark description.

I have started renaming the bookmarks - I leave the relevant part of the title (removing irrelevant stuff like brands, brand descriptions etc.) and then I add a set of keywords I associate with the link.

Later, when I want to find it, and call I can remember are some words I associate with the link, I type them in Chrome's search bar and it usually ends up matching at least 1 or 2 that I picked for the title, so Chrome finds the bookmark.

It is not a flawless system but it is effectively bookmark tagging without any additional tools. It's also based on how I associate the memory, and not on whatever random (and usually useless SEO-based text) the page creator decided to use for the title; which means that recalling the link is alot more straightforward because the way we hook memories tends to be really consistent.

Start organizing your resources in bookmark folders!

I use Evernote webclipper. You can tag the bookmarks and find them later.

Favorites?

i use pinboard for this.