This is old school weird web! For those who did not experience it, del.icio.us was a bookmarking service, and one of the first to have "tags", but also had a sense of fresh discovery. You can bookmark and tag your sites. But you can also browse the bookmarks and tags of people you know, and people they know, getting deeper, freed from algorithmic manipulation. Like Wikipedia, but you start at you.
No algorithms. What a refreshing idea!