enki Library 

The enki Library is a shared open source eBook Network that allows California libraries to own and store eBooks for access by library patrons; to share access to more content than any individual library can purchase on its own; to add features and functionality lacking in current third-party vendor models; and to share access to unique local digitized content with other libraries within the Network. Califa, a not-for-profit membership cooperative serving libraries in California, and Contra Costa County Library partnered to co-develop this open source eBook Network, shared by, and accessible to multiple library systems in California.