This document discusses the impact of Web 2.0 culture on libraries. It notes that the Internet allows anyone to publish content globally and interactively. Web 2.0 features like social media, tagging, and wikis are changing user expectations around speed, participation, and multi-directional thinking. This impacts libraries' communications, resource management, and fulfillment of Ranganathan's Five Laws of Library Science. Libraries must explore how to best connect users to resources using tools like tagging, blogs, and social media. They must also lead in areas like information literacy and adapting to new technologies to meet user needs in this changing environment.