The document discusses Web 2.0, Library 2.0, and virtual reference services. It defines Web 2.0 as emphasizing user-generated content, sharing, and collaboration over the internet. Library 2.0 applies these Web 2.0 concepts to library services by delivering information and collaborating with users online. Examples of virtual reference services provided include online chat, email, text messaging, and frequently asked question knowledge bases. The document encourages libraries to utilize these new technologies to meet users' information needs remotely.