I am writing a critical journal on a book, film, song and magazine. I have to discuss the discourses and ideologies in them but I am having difficulty understanding the difference between these terms. Can someone please explain discourses and ideologies.

Thanks

Discourses are conversations or instances in which people are speaking to one another. http://www.answers.com/discourse?cat=technology

Ideologies are collections of beliefs held by a group of people.
http://www.answers.com/ideology?cat=health

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