I just ran across this piece of code to let you add a “bookmark this” link at the bottom of your post. When a reader clicks that link it posts that posting to del.icio.us. You do need an account to post to de.icio.us.
With all this random tagging going on, I wonder if some kind of organizational hierarchy will emerge over time (much like Wikipedia’s structure emerged). If it doesn’t, then all this tagging will have little value. And if people try to impose it from the top down (through some sort of standard-setting activity), I fear we will run into the same issues that KM ran into in the corporate world – people just don’t use it.