[DerekBickerton]

I use Pinboard for a cloud-based solution to bookmarking, and I export my Pinboard bookmark collection to an on-premises local PC location every 4 months or so, in-case Pinboard's servers are somehow destroyed (which is unlikely, but still possible).

All my browser bookmarks accumulate to staggering volumes after each year, and then I simply prune the cruft, or low-quality bookmarks and curate a list of all the best ones, all using Firefox's bookmark library, which is an underestimated tool and enormously useful for organizing bookmarks.

I typically use Firefox's bookmarks export feature that generates a HTML file that I can then browse at my leisure at any time and create a sort of 'master list' of bookmarks that I can then backup in Pinboard, or other cloud services to refer back to at any time.