This page contains a number of reports and resources examining shared services. It includes Sharing the Gain a resource from CIPFA outlining all the key areas that need to be planned and agreed when setting up a shared services arrangement.
It also includes a recent report from the National Audit Office which outlines some of the pitfalls some central government departments have fallen into when trying to share services. There are lessons here for all parts of the public sector.
Also included is a link to the partnership governance workshops in 2011.