Helen Clarke is Associate Vice Provost for Collections in Libraries and Cultural Resources at the University of Calgary.  Her responsibilities include e-books includes licensing, assessment and negotiation.  Currently the University of Calgary operates an electronic preferred book approval plan with YBP and a patron driven acquisition program for ebooks with YBP and ebrary.  We are also customers of Serials Solutions Ebook marc record service.  Helen is part of the advisory group for the Association of Research Libraries E-Book licensing initiative, which is currently involved in using a model license to establish ARL approved offers for ebooks for member libraries.