PowerMagpie is a tool that brings semantic interpretation to classical web pages by dynamically--i.e. during browsing--selecting and making use of a wide range of online available ontologies. We introduce the idea of extending browsing through semantic, ontology-based interpretation. Then, we provide a brief description of the architecture. In the end we underline which aspects of the available online semantic data are demonstrated, what the user may learn and which are the future directions.