This document discusses how libraries can transform into Library 2.0 by adopting Web 2.0 technologies. Web 2.0 encompasses new content creation technologies like blogs, wikis, podcasts and social media that allow for collaborative and interactive experiences. Libraries can use these technologies in various ways - blogs for communication, wikis for collaboration, RSS feeds and instant messaging for reference services, and podcasts/vodcasts for training and marketing. Adopting Web 2.0 technologies through Library 2.0 will change how libraries deliver services and collections by making them more interactive, accessible and focused on information literacy.