Liz Mengel has published "The Confluence of Collections at Johns Hopkins's Sheridan Libraries" in a special issue of Research Library Issues on mainstreaming special collections.
Here's an excerpt:
Since the creation of the Milton S. Eisenhower Library in 1964, Special Collections at Johns Hopkins University (JHU) has been housed in the main library and has been a part of the daily flow of overall library operations. As with many other special collections departments, this department was securely sheltered behind doors where the staff performed similar activities to other library departments such as collection development, reference, and instruction. Over the past four years, the Sheridan Libraries have been making deliberate efforts to remove the metaphorical silos that separate Special Collections and other library departments. In particular, the libraries have done this by looking at how collection funds are used and by blending positions to work in both Special Collections and the Academic Liaison Department.