The document summarizes the results of a survey conducted in Norway to determine if implementing "23 Things" made a difference in libraries. 114 librarians responded to questions about which aspects of "23 Things" were most and least useful and what they have implemented or plan to implement. Respondents also shared their views on using Web 2.0 technologies like YouTube, blogs, and social media in libraries and the motivating and demotivating factors regarding their use. The conclusion asks whether implementing "23 Things" and Web 2.0 has made a difference in libraries before and after.