ReadWriteWeb

Semantic web company Adaptive Blue has published what it hopes will become a standard for publishers who want to signal in their header tags when a webpage is primarily about a particular book, film, wine or other type of objects. From search to trend analysis to a richer browsing experience - the developments that could come from adoption such a standard are many.

Called AB Meta, the format was developed in concert with a number of other web companies and is aimed to be part of a larger effort to pick up where existing Semantic Web and microformats markup leaves off. It's simple and extensible.