Increasingly, states with significantly less open information regimes (and little regard for human rights) have adopted wide-scale internet blocking as a technical resource for extending their practice of information control into the online world.
Research into censorship and surveillance practices for different states is an ongoing topic, but increasingly, with globalisation, states afford themselves the tools that are for sale. There may exist laws against selling such tools to such states, but there is money (or information) to be made, especially by the government agencies themselves. For possible mitigations, see this overview.
In Europe too: