GoodRelations Shop Extension for Joomla / VirtueMart

... an extension for VirtueMart, the popular Joomla shopping cart solution, which creates GoodRelations feeds (GoodRelations e-commerce vocabulary) of product offerings and thereby adds additional visibility and ties to your product sites by introducing Semantic Web capability (aka Web of Linked Data).
I just released a second version for this extension in July 2010. The project Web site is located at http://code.google.com/p/goodrelations-for-joomla/.
The latest code commit stems from July 28, 2010.
The GoodRelations ontology is currently supported by the Semantic Web search-engine Yahoo SearchMonkey.
Demo
RDF/XML dump file for web shop
Demo Shop main page with company profile in RDFa
Demo product page containing RDFa
Web Page Optimization for Facebook
How to combine the Open Graph Protocol with GoodRelations in RDFa.
Templates for GoodRelations
Jinja / Django-style HTML templates for adding GoodRelations e-commerce meta-data in RDF to Web shops
The templates facilitate adding GoodRelations e-commerce meta-data in RDFa to Web shops.
Features:
* XHTML 1.0 Strict compatible
* Rich RDFa patterns
* Yahoo Searchmonkey compatible
It is designed to be compatible with all Django-style templating engines, e.g.
* Jinja2 (Python)
* Django (Python)
* Google App Engine
* H2O Template Engine (PHP), http://wiki.github.com/speedmax/h2o-php/
* Liquid (Ruby), http://wiki.github.com/tobi/liquid/liquid-for-designers
Please check our dedicated Wiki page for this project at
http://www.ebusiness-unibw.org/wiki/GoodRelationsTemplates
