Media law is vitally important for journalists.
The BBC College of Journalism is one of the best references out there for information: http://www.bbc.co.uk/journalism/law
You can also see those other useful links:
- http://www.lawyers-media.com/guide/
- http://www.bbc.co.uk/blogs/theeditors/2006/09/understanding_the_law.htm
And very importantly, the book known as the ‘bible’ for Media law:
http://www.amazon.co.uk/McNaes-Essential-Law-Journalists-Welsh/dp/0199284180