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Pornhub blocks North Carolina and Montana as porn regulation spreads
(www.theverge.com)
This is a most excellent place for technology news and articles.
Pornhub is just the least skeevy but you're right. I also understand it would be impossible to get every porn site in existence to follow US law. These are just all more reasons its a stupid idea.
Xvideos and Xhamster are pretty much the same as PornHub.