Thanks to Resource Shelf for this information.
Project MUSE just announced the launch of an eBook program for 2011, Project MUSE Editions. There are currently 9 university and institute presses on board with more negotiations in process. From the press release:
Beginning next year, e-book collections will be available for purchase alongside MUSE journal collections, with an integrated discovery environment that allows for browsing and searching journal and book content side-by-side.
MUSE, a collaborative project which currently publishes online over 450 journals from more than 100 not-for-profit scholarly presses, will partner with many of the same publishers to offer high quality, peer-reviewed academic books electronically. Project MUSE is managed by the Johns Hopkins University Press, which also operates Hopkins Fulfillment Services (HFS) as a distribution arm for many distinguished university presses. HFS client presses are also among the first group of publishers committed to participating in the new book initiative.
The e-books program, called Project MUSE Editions, has to date signed contracts with the following publishers to include in the new offering books from their upcoming scholarly monograph frontlists: Baylor University Press, Brookings Institution Press, ELT Press, Indiana University Press, Johns Hopkins University Press, Kent State University Press, Penn State University Press, Purdue University Press, and University of Illinois Press. Talks are ongoing with several other MUSE and HFS client publishers, with more participants expected to be announced before the end of this year.