Just noticed a nice little beta feature in Delicious - the ability to browse through a user's bookmarks. Now, it doesn't sound like anything particularly special... but there's something really handy about not just seeing a list of links (and descriptions if people have remembered that information) and being able to browse them in the way that you might with Google Reader etc. You can also go back to the bookmark details if you want to from the browsed version and add it to your own bookmarks if you like.
Would be really handy if they extended this to allow you to browse through bundles of tags etc... but this is a nice little step, particularly if you're one of those people who 'knows what they're after when they see it' and a linear list isn't really doing it for you. :o)