The UK Government Department for Education has recently updated the document for guidance for schools on the benefits and risks of moving information and services to the cloud.
The can be downloaded from https://www.gov.uk/government/publications/cloud-computing-how-schools-can-move-services-to-the-cloud
This document also refers to another document relating to Cloud software services: how schools should protect data, which provides data protection guidance for schools considering using cloud software services (‘the cloud’) to hold sensitive information. https://www.gov.uk/government/publications/cloud-software-services-and-the-data-protection-act
The document also contains a current list of supplier’s checklist statements.