I use Delicious to bookmark not only fic but all kinds of other things, like recipes and articles and craft resources.

Well sure, but I just use my browser bookmarks for that.

And not everything I bookmark has the option to favourite on the site

(quoting original post) "Or in bookmarks in your browser if it doesn't have that function or you can't get an account"...

when I did my MSc research I bookmarked stuff that I then used as my corpus

...although I can see it being handy as a way to create a link list you can then send others to see without having to actually code up a web page or blog post.

And then, when I come back to my bookmarks later it's often from a different computer (I often bookmark interesting-looking fic if it shows up on my flist while I'm at work, then read it on my phone later when I'm not at work)

I just synchronize my bookmarks between my three computers. Granted I can't sync to the iPad (I don't have a phone), but in the eight months we've had it, I've only run into a situation where I wished I wished I could access my "to read" list on it a couple times.

a device I don't entirely trust, mainly because I can't see where it keeps its brain...

lol.