Very few digital libraries are sufficiently advanced to have incorporated interactive reference services. Most offer an e-mail contact for queries, and one or more frequently asked question (FAQ) files, which typically focus on either descriptions of the technology or information about the resources. For example, digitized collections at Duke University are listed on the home page of the Rare Book, Manuscript, and Special Collections Library, along with a link to a page that provides e-mail and telephone contact to reference services for those doing research in the collections, whether print or digital.