At this summer's Institutional Web Management Workshop in Sheffield (IWMW 2010), I demonstrated how it is becoming feasible for a content management system both to consume and to produce linked data resources.
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WordPress is an open source blog tool and publishing platform powered by PHP and MySQL. It's often customized into a Content Management System (CMS). It has many features including a plug-in architecture and a template system. (Excerpt from Wikipedia article: WordPress)
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