The College Art Association (CAA), working jointly with SAH, has released its Guidelines for the Evaluation of Digital Scholarship in Art and Architectural History for Promotion and Tenure. The guidelines are the result of a Task Force convened by the two associations of ten members from the academic community with experience in digital research, publication, and/or scholarly communications and administration.
http://www.collegeart.org/pdf/evaluating-digital-scholarship-in-art-and-architectural-history.pdf