New UMBEL Release Gains schema.org, GeoNames Capabilities by Mike Bergman.
From the post:
We are pleased to announce the release of version 1.05 of UMBEL, which now has linkages to schema.org  and GeoNames . UMBEL has also been split into ‘core’ and ‘geo’ modules. The resulting smaller size of UMBEL ‘core’ — now some 26,000 reference concepts — has also enabled us to create a full visualization of UMBEL’s content graph.
Mapping to schema.org
The first notable change in UMBEL v. 1.05 is its mapping to schema.org. schema.org is a collection of schema (usable as HTML tags) that webmasters can use to markup their pages in ways recognized by major search providers. schema.org was first developed and organized by the major search engines of Bing, Google and Yahoo!; later Yandex joined as a sponsor. Now many groups are supporting schema.org and contributing vocabularies and schema.
You will appreciate the details of the writeup and like the visualization. Quite impressive!
PS: As if you didn’t know:
This is the official Web site for the UMBEL Vocabulary and Reference Concept Ontology (namespace: umbel). UMBEL is the Upper Mapping and Binding Exchange Layer, designed to help content interoperate on the Web.