I noticed no-one commented, so I thought I'd post from the Porn Report, posted by some Australian Academics
Here's something from one of the links
"From this study I learned that many of our common sense assumptions about pornography are based on ignorance and prejudice rather than facts. A few points stick out.
There?s bad porn and good porn. Bad porn involves anything, at any point in the production, that is non-consensual. Good porn is consensual. But beyond that, there are no simple yardsticks for making value judgements. We found out from our analysis of best selling videos that good porn can have lots of complicated storyline to get you to the sex, or nothing except sex, sex, sex; no characters, or complex characters; straight sex or kinky sex; no music at all, or through scored soundtracks. This is because different audiences like to see different things, and so there are many different types of mainstream pornography. Two important strands are fantasy pornography and girl-and-boy-next-door-pornography. They are both very popular, but they are very different.
Fantasy pornography is what people think of when they think of Playboy ? unrealistically attractive men and women, with stereotypically beautiful bodies, the women with lots of make up and the men with big muscles, in expensive videos that have proper storylines and characters.
By contrast, girl-and-boy-next-door pornography features people who look like amateurs ? they have normal bodies, they aren?t very well groomed, and there are often no plots but just many scenes of people having sex in suburban rooms. So whenever somebody makes a general comment about porn (eg, it?s full of stereotyped beautiful bodies), they aren?t describing the real range of popular mainstream pornography.
I was also amazed from our survey of consumers of pornography by just how important it was to them that they want to see people who appear to be genuinely enjoying themselves in the videos. There?s so much talk about the violence and aggression in pornography that you?d imagine this is all porn consumers want to see. And that?s not true. It?s not political correctness that means porn consumers can?t see rapes ? the truth is that it just doesn?t turn them on. The viewers get turned on by porn actors who look like they?re turned on by what they?re doing. It?s common sense when you think about it ? but whenever you hear people talking about porn and its consumers, they never seem to get this simple point.
And in terms of production, it was a bit of a revelation when our research revealed a strong motivation for people making porn was that they are exhibitionists who were turned on by having sex in front of people. Again, hearing that, it?s one of those moments where you say ?Duh!?. Of course it makes perfect sense. It?s just amazing that nobody?s pointed it out before.
[http://www.thepornreportbook.com/]