Designed for humans first and machines second, microformats are a set of simple, open data formats built upon existing and widely adopted standards...Semantic markup is valuable because it allows us to build smart tools for consuming information...
Microformats: Recognizing the complexity of RDF and OWL, the goal of microformats is to embed basic semantics (meaningful relationships) right into HTML pages. It is not as expressive right now as RDF and OWL, but it's compact & and uses at-hand XHTML. A
The so-called "lowercase semantic web" represents a misunderstanding of what's important about the Semantic Web, namely the requirements for a uniform metamodel for data that allows schemata to be extended, and accessible, declarative semantics. Microform