Social Bookmarking

I like bookmarks as much as the next person, but I'm selective about what I actually add to my favorites. Although I see the theoretical value of social bookmarking, only actual experience with del.icio.us will confirm its actual usefulness for me. My biggest concern is that with so many people adding bookmarks, del.icio.us will become cluttered with junk. This seems to fate of every collection of bookmarks. I don't know what tags would be most useful to the library. Tags aren't always intuitive and can be junk just like bookmarks.