Delicious Social Bookmarking

Here's my nascent Delicious page:

http://delicious.com/Caesarslaad

I can see a lot of benefit to organising my bookmarks with tags.

ATM I've got a few folders on my home PC's Firefox bookmarks, but each one can only exist in one folder. Tagging allows for faceting in storage and retrieval.

http://en.wikipedia.org/wiki/Faceted_classification

I need to explore native options in Vista to tag my photos and music.