For quite a while now I have been using del.icio.us bookmarks, my user name is libroboy (yes, I know it’s a goofy screen name, but all the good ones had been taken).
The features I like about del.icio.us are that you can keep all of your bookmarks in one place on the web. So, if your computer blows-up or gets re-imaged, then there’s no wailing about lost bookmarks. Other features are that you can tag sites, organize them into bundles (or folders), and share them with others. You can also use del.icio.us as a website search engine; it’s a little bit like NOT having to re-invent the wheel, plus It’s a good way to see what others have been tagging, and which sites are popular for a particular topic. Del.icio.us can also be integrated with facebook.