I think libraries can make good use of wikis to further enhance their services to patrons and as a different and extra way of organising information and resources. Wikis like subject and resource guides are a good way of grouping things and allowing many people to have input into the way things are organised and what works best for the people who use the library. They can also allow more visibility for the library's resources such as e-resources and databases which can be hidden in a website or catalogue. I particularly like the Book lovers wiki which allows people to share their experiences of books and add reviews and it's good to get people actively involved in their library.