The CFOI has campaigned against unnecessary secrecy and for the Freedom of Information Acts in the UK.
http://www.cfoi.org.uk/.
The site includes an easy to read guide on the FOI legislation for both Scotland and the UK, with additional commentary on other relevant related legislation such as the Environmental Information Regulations and Data Protection.
http://www.cfoi.org.uk/pdf/foi_guide.pdf.
(15/02/06)