I think the key is that you can still find content without tagging. Gmail does this through fantastic search capability. When you have that as a backup, tagging

I think the key is that you can still find content without tagging. Gmail does this through fantastic search capability. When you have that as a backup, tagging becomes quite wonderful. As a sidenote, I've often wondered what computing would have been like had the concept of folders been replaced by tags from the beginning.