this is 2012, not 1971
and in 1971 at least if you wanted to see images of people being penetrated by 3 men at once, getting 50 loads of semen down their throat in an hour, drug-addicted women who've exhausted their money making potential for the men behind mainstream porn being penetrated by horse and dog penises, etc. you'd have to know criminals or go to a few streets in Soho where corrupt police allowed it.
And people convicted of selling this sort of material faced serious jail sentences. Now it's all over the internet
We've gone backwards, not forwards, on porn with the exception of the laws against child abuse images.