befb8e68_eBook_Options_for_Libraries__Source
[Name] Portability Model [Ownership] Yes [DRM-free] No [Copyright/License] Fair Use/First Sale [Distribution] Vendor-hosted, DRM-enabled software (currently Adobe Content Server) [Format] All but PC, Nook, and Kindle [Cost] Negotiated with Vendor [Examples] 3M Cloud Library at the State Library of Kansas and Baker & Taylor's Axis 360 at King County Library System [Source] 
Any eBook distributor (State Library of Kansas obtained permission from publishers to transfer copies between hosting vendors)
eBook Options for Libraries
Source