CNN has published an amusing article on the benefits of tagging ideas, images, videos, and people, concluding that "If they're properly tagged, they're far easier to find." What a great idea -- institutions who digitize dusty photos and books could learn a lot from this article. All kidding aside, the EXIF metadata in the files coming out of digital cameras and the track info encoded in MP3 and other digital audio formats illustrate how mainstreamed it has become to embed metadata in digital objects. Now, if I could only find some good software to extract the metadata embedded in some of the people I know...