H-HistBibl is an international network of librarians, archivists, curators, and scholars interested in the practice and study of bibliographic and library services to support the study and teaching of history.
Unfortunately, many scholars won't be able to use this resource because they are not faculty members at a large university. Gale/Cengage, unlike other companies such as JSTOR, has no affordable access program for individuals.
An interesting post by Leann Wilson and Marshall Poe on a single online portal for academic books and direct-to-book-consumer models.
Leann Wilson is the co-editor of the New Books Network and Coordinator for Outreach and Social Media at Amherst College Press & Lever Press. Marshall Poe is the founder and editor-in-chief of the New Books Network.
CNI (The Coalition for Networked Information) recently released a video on Text Data Mining (TDM) Research Using Copyrighted and Use-Limited Text Data Sets: