This is a good overview with summary of what Web 3.0, Linked Data, and Semantic Web is all about. Well worth a read to get a better understanding of where the web is going…
The series aimed to tie together 3 big trends, all based around structured data: 1) the still nascent “Web 3.0″ concept, 2) the relatively new kid on the structured Web block, Linked Data, and 3) the long-running saga that is the Semantic Web. Greg’s series is probably the best explanation I’ve read all year about the way these trends are converging.