Is Web 2.0 a marketing buzzword, industry-speak or something more? This presentation covers the key concepts behind Web 2.0 in the search for a definition. It also outlines the case or arguments against Web 2.0 and finishes with a Web 2.0 challenge for you. This presentation was delivered at an Emerging Web Technologies and Trends conference in Auckland, New Zealand. The deck was used as "In Person Presentation Support" and was 40 mins long, allowing for 5 minutes of audience questions at the end.