Wiki for libraries

It seems that wiki's are being used in many ways. The wiki, "Library Success: A best practice wiki" was elaborate and interesting. It had many links to articles by librarians and reports on topics related to librarianship. Then "Book Lovers Wiki" - developed by the Princeton Public Library was very simply a list of reveiws created during their 2006 summer reading club program. I think there could be a few good uses for this tool in libraries. I could see this being used by committees to share and organize ideas and infomartion without physically meeting. More people could be involved in brainstorming with more creative ideas playing off and melding with other creative ideas.