March 24 China

China blocked sites such as Gmail and other Internet software (such as anonymity programs) that allow web users to evade surveillance.

March 25 Sudan

Following an increase in anti-government campaigns organized on Facebook and Twitter, Sudan's ruling National Congress Party warned that its "cyber jihadists" would "crush" Internet-based dissent.

March 28 United States

As governments in the Middle East tried to stifle political dissent by censoring the Internet, news broke that American companies provided much of the technology used to block websites in the region.

March 30 United States

Google breached the privacy of Gmail users by automatically signing them up for the company's new social networking tool Buzz and leaking information from users' address books without consent.