Tagging has become the ultimate way to externally describe a web site using metadata.
Services such as YouTube, Flickr, StumbleUpon, Yahoo! MyWeb and del.icio.us use tagging to let users or visitors of that site define it beyond the content and met tags used by the publisher.
Essentially tagging is what people are saying about your business, and in terms of SEO, what better way to define a site’s relevancy or authority by cross comparing the on-site content to the tags given that site over multiple channels.
Del.icio.us has taken tagging one step further by letting its users add a Description to a tag. The original intent is to let users define the nonsense, slang, or web centric (think MySpace and txt lingo) terms they use for tagging.
I’d like to also think that such tag descriptions bring a new level to external metadata, further defining the site which is tagged and its core relevancy to keyterms and other web tags earned and acquired.
Many people use the same word to tag, even when they may mean very different things. Tag Descriptions allow you to describe your tags for yourself and others visiting your bookmarks.
To use Tag Descriptions simply go to your tag page. From this page you should see a link called “create tag description”. Clicking this link pops up the interface for creating a Tag Description. Please note that Tag Descriptions are always public, so don’t put in anything that you don’t want others to see.