The change to Macmillan’s library ebook sales policy for public libraries is effective immediately according to a post on OverDrive’s Digital Library Blog:
Macmillan Publishers has made the decision to begin selling their eBooks to library consortia!
Macmillan eBooks are Metered Access eBooks available for 52 checkouts or a 24-month timeframe, whichever comes first. Independent library systems will continue the access they previously enjoyed, and are not impacted by this announcement.
Macmillan expanded their ebook pilot for libraries at the end of June when they announced that all frontlist titles would be available for sale to individual libraries.