The Research Information Network has released E-Only Scholarly Journals: Overcoming the Barriers.
Here's an excerpt:
This study is prompted by a concern from publishers and librarians that the retention of both printed and e-journal formats adds unnecessary costs throughout the supply chain from publisher to library to user. In view of the many advantages of electronic journals, this report sets out to understand the barriers to a move to e-only provision of scholarly journals in the UK, and to investigate what various players within the scholarly communications system could do in order to encourage such a move.
This study involved a thorough literature review, gathering and analysing information provided by publishers and librarians, and interviews with a range of publishers, librarians and academics. The results are presented in this report, along with some recommendations for action.