1) The document discusses the evolution of the web from Web 1.0 to Web 2.0 and how libraries are adopting Web 2.0 technologies and principles to become more user-centered and participatory, an approach called Library 2.0.
2) Key aspects of Library 2.0 include using blogs, wikis, tags and other Web 2.0 tools to involve users, deliver services directly to them, and make library data more accessible and useful.
3) The document advocates that libraries embrace change, take risks, experiment with new technologies, and make play an important part of innovation.