I want to be able to refer back to valuable writing I've read online. I read something once about effective use of multiple choice questions in a classroom setting. I'd like to be able to find it again.

I want to be able to browse a curated collection of the web around some topic. I've come across a handful of really, really good tech blogs over the years. I'd like to be able to flip through them in one place. I'd like to be able to peruse my collection of in-browser games.

I want to get faster access to sites I use often. This might be seeding the autocomplete algorithm in the address bar, some kind of launcher, etc. I don't know what form this would ideally take, but it's a use case I want for bookmarks.