Pornography is not only classified by the sexual activity of the participants but also by the charecteristics of these participants. On one side you have the paid professionals and on the other side you have every day people. This category is getting bigger and better over the years. The connectivity and digitalisation of the world play big factors in this growth. Back in the days polaroid cameras were the biggest step forward for pornographic photography. The picuters were produced immediately witout needing people to process them.