I have been using delicious for my bookmarks for a while now and believe that it deserves a recommendation. I use a couple of different computers and it is a great way to have my bookmarks (or favourites) available to me on every machine I use.
If you use more than one computer, or want to be able to access your bookmarks when not at home (say in an Internet cafe) then it is just the thing.
On top of which it is a social bookmarking tool which makes sharing your bookmarks with other people incredibly easy. Go to Del.icio.us and check it out
