1. The document discusses how libraries and museums are using various Web 2.0 tools like blogs, social media, wikis, and content sharing platforms to engage with users and share information. 2. Many libraries mentioned in the document use tools like blogs, Facebook, Twitter, Flickr, YouTube and RSS feeds to communicate with and listen to users about services and events. 3. Libraries and museums are also using these tools to promote and share information about resources like books, stock, and exhibits to reach users where they are online.