United Kingdom

Legislation

FOI Act 2000
Freedom of Information (Scotland) Act 2002
The Re-use of Public Sector Information Regulations 2005

Enforcement

Information Commissioners Office
Information Tribunal

Scottish Information Commissioner

Journals

Open Government: A Journal on Freedom of Information

Information Rights Journal 

Organisations

Department of Constitutional Affairs

Office of Public Sector Information

Campaign for Freedom of Information 

The Constitution Unit, School of Public Policy, University College, London

Department for the Environment, Food and Rural Affairs (reponsible for the Environmental Information Regulations)

The National Archives