The Indiana University Purdue University Library is using Drupal for their public website. They have integrated it with the ExLibris Metalib X-Server, which harvests database data and displays the list and links to all of their databases. They use it for librarians to create subject guides, and they plan to also use it to create an intranet.
She went through some other examples really quickly and then noted a few trends that she saw. Drupal is being used in most libraries to empower staff to be able to contribute content to the website directly without the filter of a webmaster. Drupal also offers the ability for users to interact with the sites. It is also being used quite often to create staff intranets.
There is a Drupal in Libraries Group, a Drupal in Libraries Listserv, and a Drupal Library Community website. There are Drupal support groups with over 3600 members, Drupal conferences, Drupal camps. There will be a Library Technology Report focused on Drupal in libraries, and it's coming out next month. Drupal Dojo and Lullabot Drupal Podcasts are great resources for finding information on how to use certain aspects of Drupal.