I never thought about which countries are producing all the porn. I tried to find some numbers but it turns out to be quite hard. I still found some interesting numbers [1] although they do not really answer what I was looking for, which country is producing how many hours of porn every year.
Also, in a thread about censorship: an accidental showing of a half-covered nipple on terrestrial broadcast TV would not result in a half million dollar fine and many many years of legal action. (I think the original fine was eventually overturned, but only because the FCC had changed a policy before taking action??)
US TV shows have to censor their language unless they're broadcast on cable or satellite.
[1] http://skeptics.stackexchange.com/questions/7668/is-the-inco...