This is a great list of publishers in the library ebook market.

http://www.thedigitalshift.com/2012/02/ebooks/a-guide-to-publishers-in-the-library-ebook-market/

Springer is a participant in open access.

http://www.springer.com/open+access/open+choice?SGWID=0-40359-0-0-0&cm_mmc=Doubleclick-_-Other-_-SMD555-_-Open%20Choice%20banner

Yet another publisher enters the digital self-publishing arena. http://www.forbes.com/sites/suwcharmananderson/2012/09/14/harper-voyager-opens-the-door-to-authors-without-agents-but-just-a-crack/

This is a new twist in how traditional publishers are viewed. http://incognitopress.wordpress.com/2012/08/27/is-traditional-publishing-the-new-vanity-publishing/

This is another major change in how publishers will produce and acquire books.

http://www.forbes.com/sites/jeremygreenfield/2012/07/19/self-publishing-turns-a-corner-with-penguin-acquisition/