Martin Paul Eve has published "Open Access Publishing Models and How OA Can Work in the Humanities" in the Bulletin of the Association for Information Science and Technology.
Here's an excerpt:
Open access (OA) has been shaping and benefiting the scientific community for years now, but this new wave of disseminating research freely has not quite taken hold in the field of humanities. Though humanities publishers could also benefit from an OA model, many have been resistant, citing possible issues with plagiarism or appropriation of an author's work for less than ideal uses. There are also challenges with the cost of publishing OA content, which for humanities could be much higher than in the scientific community due to the length of works produced.