For those interested, I've converted my blog bookmarks (and some additional entries) into del.icio.us bookmarks at: http://del.icio.us/shudson310/
If you haven't heard about del.icio.us, it's a very interesting social bookmark manager. You can add create a personal collection of links, categorize those links with keywords, and share those categories and links with others!
You can also view the links collected by others, see who else bookmarked the same sites, and subscribe to other people's link collections.
In some ways, I see this very akin to a Topic Map, where you are mapping Topics to Occurences and the del.icio.us service creates the Associations between the Topics and the collection lists.
I think it would be very cool if the site provided the data, expressed in a Topic Map as an additional service...
See also: TopicMaps