See also: A proposal for an HTML "Resource" element Historical web design note on formats HTTP overview by W3C Generic Resources A URI represents a resource A "resource" is a conceptual entity (a little like a Platonic ideal). When represented electronically, a resource may be of the kind which corresponds to only one posisble bit stream representation. An example is the text version of an Internet RFC. That never changes. It will always ha the same checksum. On the other hand, a resource may...