I'm for all adult material being put up for download on the net, then governments would have a very hard time getting in the way of peoples' private business. There will always be a server out there somewhere willing to disseminate adult material for profit.
In Canada you can offer up all kinds of fetish material over the net, and there hasn't been a successful obscenity prosecution I know of, but god forbid you should try to import it (fucking customs...I'm sure I've been flagged...)
check this out:
http://www.gomorrahy.com/index.htm
"A NON-PROFIT, EDUCATIONAL WEBSITE CONCERNING CENSORSHIP IN CANADA"