Rotunda was created for the publication of original digital scholarship along with newly digitized critical and documentary editions in the humanities and social sciences. Under the ‘entrance page’ it is possible to access the various Rotunda publications. Most of the editions regard the history and literature of the USA, but there are also some texts regarding Europe (mainly the United Kingdom) or the relations between the USA and Europe. They are sorted into four collections:
- SAH Archipedia. Online version of the Society of Architectural Historians’ Buildings of the United States series.
- The American Founding Era collection. Primary sources by and about the most notable figures from the history of the USA in the 20th century.
- The American Century collection. Papers of major figures of the early history of the USA.
- The literature and culture collection. American and British literature from the Renaissance through the 19th century.
Within the four collection a large variety of texts is available: some examples are the works of George Herbert, the diaries of gouverneur Morris, the letters of Christina Rossetti, and the journal of Emily Shore. It is also possible to search in the full text of the books. In order to gain full access to the editions it is necessary to register.