As always, way behind the rest of the world.
I got frustrated maintaining bookmarks on multiple computers, and trying to keep track of my blogroll. del.icio.us to the rescue.
It also prodded me to finally incorporate my static pages into WordPress. I had been resisting because I really didn’t want to update the pages. A lot of them have a “Resources” section, and I realised that those links could go into del.icio.us as well, with the appropriate tags, and the static lists could be replaced by del.icio.us feeds. There’s a good example at the very end of the Home Modification page.