The document discusses the changing role of museums in a Web 2.0 world where lifelong learning is emphasized. It notes the history of audience research in museums and focuses on making museums more visitor-centered and accessible for diverse audiences. The document advocates for constructivist exhibitions that allow free choice, multiple entry points, and user-controlled learning. It also stresses the need for museums to recognize how social media and Web 2.0 can impact the physical museum experience and engage visitors wherever they are.