Via iaslash, I found MetaMap which is a visualization of metadata initiatives. Not only is it amazingly comprehensive, but the map itself is SVG! “Why,” you ask “does that rock?” Well, I’ll tell you. If the map were Flash, not a bit of all those acronyms and brief definitions would be indexed by our favorite search engines. SVG is XML and “using XML to mark up graphics is just as much of a benefit as using it to mark up textual data. It’s about semantics; a graphic, or the pieces within that graphic, can have as much semantic meaning as any other document.” (from SVG On the Rise) Note that the SVG initiative itself is included in the MetaMap. So in this case SVG was the perfect choice.