Well, If all of those sites are seen as merchant sites, you can add a site like
http://www.backpage.com/ ...many of the services rendered on those classifieds are accepting
BTCThe two sites in my opinion, that should have topped the list, should be Overstock and NewEgg, they deserve it the most.
4Chan should not be on the list, if I had a say in the matter.... but who cares anyway? Bitcoin fear to tread, where the other will not follow.