Jon Udell takes a tour of del.icio.us

I've been using del.icio.us for a while to manage my links and as a linkblog. The tags allow you to slice and dice sets of your links (and every one elses links) in a very natural way and subscribe to an RSS feed of the result. Infoworld columnist Jon Udell takes a lap of del.icio.us in a screencast if you haven't had the "Ah ha!" moment yet. Flickr supports the same kind of operations for photos and now FeedTagger is going to do the same thing for RSS aggregation. This is more useful than Technorati tags which the feed author bakes into the content (which seems like the meta tag all over again) - I care more about what other people think the content should be tagged with. I expect most online aggregators to support this in the future.