Media Guidelines for the Portrayal of Disabled People Ireland, made by the ILO.
TV Tropes has many examples of disability portrayal mainly in USA
Ouch BBC Podcasts
Ouch BBC Podcasts cover a wide range of issues including portrayal.
The article of Disability in the Media.
The Canadian Association of Broadcasters report
A summary by Media Smarts of Common Portrayals of Persons with Disabilities in Canada.
Representations of Disability Slideshow
A slideshow covering a range of stereotyped images propagated by the media. See it here.
A tale of two general election years
Article by Jenny Morris depicting the stark change in public and political attitudes to disability between 1992 and today.
Media Representation of Disabled People
A concise overview by Lucy Wood. http://www.disabilityplanet.co.uk/critical-analysis.html
21 Years of Link
From a series of posters for Birmingham City Council on the UK Disability Movement.