Here is a recording of our presentation at the Gilbane Boston CMS conference.
The topic of our talk was how structure increases the value of your data. We start by talking about structured data in a general context. We then move on to talk about the Semantic Web, and at the end we talk about structured data in the context of CMS systems. The presentation contains several examples of websites using the Webnodes CMS.
The presentation file: 
Gilbane Boston.pptx
The presentation recording: 
WebnodesCMS.mp4