End User SharePoint Article List

EndUser SharePoint is a great resource for SharePoint Enthusiasts:

https://www.nothingbutsharepoint.com/sites/eusp/Articles/Pages/default.aspx

What is Metadata and Why Must I Use It?

The following link is from an article on Nothing But SharePoint.com: 

https://www.nothingbutsharepoint.com/sites/eusp/Pages/What-is-Metadata-and-Why-Must-I-Use-It.aspx