Aaron Swartz, co-founder of Reddit and activist who fought to make online content free to the public has been found dead, authorities confirmed.
Talks over possible new UN regulations for the internet have been deeply divided.
Concerns about state censorship ahead of elections have been raised in Iran as the country faced a second disruption in internet connectivity.
In Iran, attempts to get onto foreign news pages have been met with a page saying, "Access to this page is a violation of computer crime laws."
An Indian court has told Google and Facebook to have a better check system that will eliminate "offensive and objectionable" content, or face banning.
Rumours of retired Chinese leader Jiang Zemin's death sent internet censors into overdrive, in turn spurring people to craft more inventive postings.
The UN should set up a commission to look at the conflicts between privacy and freedom of expression on the internet because the issue is global.
Pakistan blocked access to Facebook on Wednesday over a competition encouraging users to post caricatures of the Prophet Muhammed on the site.
Australia came under fire on Wednesday for its proposed internet filtering system, which, if implemented, would be the strictest of any democracy.
China has assured mobile phone companies using Google's Android operating system that the technology will be allowed if it complies with regulations.
Microsoft founder Bill Gates plays down Beijing's attempts to stifle dissent on the internet as "very limited".
US President Barack Obama is "troubled" by cyber attacks on Google and wants answers from China, the White House said on Friday.
Chinese media on Friday dismissed Washington's call to lift internet censorship, but the critical Chinese reports were then cut from websites.
China has issued new internet regulations, including what appears to be an effort to create a "whitelist" of approved websites.
What do Johnny Depp, Garfield, Paris Hilton and roast pork have in common? In China, they can be bad for your moral health.
The EU accused China of "unacceptable" web censorship on Friday, as Brussels rejected Beijing's claim that a filter is aimed at blocking pornography.
Top US officials have urged China to abandon its controversial plan requiring new PCs to be sold with internet-filtering software from next week.
Burma has been judged the worst country in the world for online restrictions in a report looking at the repression faced by bloggers.
China sought on Friday to portray its internet crackdown as a campaign to protect youth from filth and nothing to do with stifling political dissent.
China has shut down 91 websites for pornographic and other "vulgar" content, as well as a political blog portal.