An Introduction to Linked Open Data in Libraries, Archives & Museums by Jon Voss.
From the description:
According to a definition onLinkedData.org, “The term Linked Data refers to a set of best practices for publishing and connecting structured data on the web.” This has enormous implications for discoverability and interoperability for libraries, archives, and museums, not to mention a dramatic shift in the World Wide Web as we know it. In this introductory presentation, we’ll explore the fundamental elements of Linked Open Data and discover how rapidly growing access to metadata within the world’s libraries, archives and museums is opening exciting new possibilities for understanding our past, and may help in predicting our future.
Be forewarned that Jon thinks “mashing up” music tracks has a good result.
And you will encounter advocates for Linked Data in libraries.
You should be prepared to encounter both while topic mapping.