I like Power Tools.
I really like the library Power Tools page. I like it so much that I was emailing family and friends so they would know about these resources.
The highlighter feature is a dream! I discovered it accidentally as I was highlighting a CD I wanted to see if the Library owned. I highlighted, looked up and it was already in the search bar.
Great service. I don't think enough people know about the Library Tool bar and everything it can do. I think that if each library staff member told one person about this feature of the tool bar it wouldn't take long to get more "power" users out there!