The Wikis in Plain English video from YouTube is a simple example of the advantage of using wikis rather than e-mail. It stresses edit, save and link.
I enjoyed looking at the wiki examples provided for Thing 10. Maybe I have looked at the Princeton Public Library and Library Success ones before. On the Library Bloggers Wiki, I checked Ashland University under academic libraries being we stayed at Ashland, Wisconisin last week. (Ashland University is in Ohio!).
After finishing the Minnesota 150 book a few weeks ago, I enjoyed browsing that wiki. When I went to the 23 Things Wiki, I saw a Minnesota photo that someone had posted, so added a comment. I will plan to return to some of the wikis again.
Some of the public library ones might be useful for ideas for titles for our book club.