Countries where the Internet is most controlled and speaking your mind on it can get you in serious trouble with the government, according to the Committee to Protect Journalists:

1. North Korea. All websites are under government control. About 4% of the population has Internet access.

2. Burma. Authorities filter e-mails and block access to sites of groups that expose human rights violations or disagree with the government.

3. Cuba. Internet available only at government controlled "access points." Activity online is monitored through IP blocking, keyword filtering and browsing history checking. Only pro-government users may upload content.

4. Saudi Arabia. Around 400,000 sites have been blocked, including any that discuss political, social or religious topics incompatible with the Islamic beliefs of the monarchy.

5. Iran. Bloggers must register at the Ministry of Art and Culture. Those that express opposition to the mullahs who run the country are harassed and jailed.

6. China. China has the most rigid censorship program in the world. The government filters searches, block sites and erases "inconvenient" content, rerouting search terms on Taiwan independence or the Tiananmen Square massacre to items favorable to the Communist Party.

7. Syria. Bloggers who "jeopardize national unity" are arrested. Cybercafes must ask all customers for identification, record time of use and report the information to authorities.

8. Tunisia. Tunisian Internet service providers must report to the government the IP addresses and personal information of all bloggers. All traffic goes through a central network. The government filters all content uploaded and monitors e-mails.

9. Vietnam. The Communist Party requires Yahoo, Google and Microsoft to divulge data on all bloggers who use their platforms. It blocks websites critical of the government, as well as those that advocate for democracy, human rights and religious freedom.

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Top 10 Internet-censored countries