Within the framework of the agreement signed by UNAM and Google in 2007 to digitize the National University's collection of books, there needs to be a means of promoting UNAM's Biblioteca Digital (BiDi-UNAM), which has been digitizing its collection of bibliographic holdings dating from 1950 to the present. The early experiences of BiDi-UNAM, the use of its technical resources and staff, and its policy of open-access e-book production should be considered as a case study for the new digitization project (the 2007 agreement).