I enjoyed reading the various library wikkis and have added a few to my RSS feeds. I liked the Stanford library site for book recommendations, the Library Success wikki from a management standpoint, the ALA Conference Wiki gave me ideas and the Albany County staff wikki seems that is a good method to keep track of staff procedures.
We have discussed creating an Access Services wikki, as the head of Local Arrangements we may create a wikki for IUG in San Jose and I can think of several personal uses - including for my book clubs as a way to track and rate books.
Next, I want to create my first wikki. More on that later.