I used to use Pearltrees for these links, but I haven't updated my tree for a while now. Anyway, I think storing my bookmarks in this Google-based product will ensure that they'll get indexed, and maybe even looked at by a larger population than those using Pearltrees--no matter how pretty pearltree collections are.
<--- The sidebar menu is pretty helpful. And the Sitemap at the menu bottom provides the same info.
notes...
originally was "list" page type. is that useful for bookmarks?
Q: how do I change to/from other page types?
A: under "More" pull-down, then "Change page template".
Q: i don't really need to manually make links on here to the various categories of bookmarks...
A: no, because the sidebar already shows the hierarchy, and links to each category.
Still trying to figure out a way to organize hierarchy. Should categories be on a single page? A sub-page? What about top-level subjects?