LibX: a library lookup tool browser plugin (with a plugin builder tool)

from the web site:

LibX is a browser plugin for Firefox and Internet Explorer that provides direct access to your library's resources.
LibX is an open source framework from which editions for specific libraries can be built.
Currently, 545 academic and public libraries have created public LibX editions.

Create your own LibX edition now, or take a look at the screenshots & screencasts hosted at this site.

LibX received the 2007 LITA/Brett Butler Entrepreneurship Award.

There isn't (yet) an Ann Arbor District Library version of this plugin.