I got a shout out, woo-hoo!<p>I think tagging is best when people tag items that aren't theirs. Otherwise they are inclined to abuse it as a distribution mechanism. If tagging well-served photos, then why do they have Groups Sets Collections, etc? Hmph.<p>I also disagree that tagging was responsible for flickr's success.<p>(2001, not 2004 for creating it, incidentally.)