GoodRelations is a standardized vocabulary for product, price, and company data that can (1) be embedded into existing static and dynamic Web pages and that (2) can be processed by other computers. This increases the visibility of your products and services in the latest generation of search engines, recommender systems, and other novel applications. GoodRelations has been developed by Prof. Dr. Martin Hepp at Universität of Bundeswehr, Munich.
Comprehensive information can be found on the GoodRelations project page.
Use the benefits of semantic e-commerce with the free magento extension MSemantic.