Matt's interconnected blog really rocks. Today he posted a great discussion about using RDF to create semantic links between blogs, but applies to all web sites in general. This is becoming more interesting to me and I'm starting to read up a little more on practical implications for using DC elements to describe pages and using RDF to create linkage. There's a lot of potential there that's waiting for killer applications and proofs of concept. MT's trackback is a good POC for weblogging linkage, but some day we're going to see real powerful applications like blogdex that will aggregate RDF feeds and churn out better clusters based on descriptive elements like subject heading. Hell, would be nice to just churn out clusters based on person's name!