University of Warwick Knowledge Centre
The article also has some useful links, but with one notable omission - they do not mention the British Newspaper Archive probably because it does not have an institutional subscription option.
While you are there, it is worthwhile exploring some of the other resources in the Knowledge Centre. I came across the University's resource page Why Blog? which includes a variety of case studies - I see that one of my former lecturers blogs about the political economy of football (proper football where you don't pick up the ball, you have to kick it with your foot, that's why it's called football).