Del.ici.ous?

I hope I spelled that right. Yes, this is the newest web app I've sampled of late. It seems like a simple enough function, from what I've seen of. It's a little like a search engines, were the tags act as search terms. I haven't tried it yet myself, so I'm not sure how the actual tagging part works, but it shouldn't be that difficult, if the rest of the site is any indication.