We tend to take our computer access and publishing online for granted here in the U.S. In countries like China and Iran, where blogging has become exteremely popular with students, the option of writing whatever you want is made much more difficult because the governments control Internet access. CNN had a story yesterday on a new guide "Handbook for Blogger and Cyber-Dissidents" put out by Reporters without Borders to help bloggers in countries with government controled Internet access get around the censors. You can read the story here
There is also a group based at Harvard Law School called Global Voices Online, which has made it their mission to encourage blogging internationally and helping those who are doing it from countires with limited freedoms of speech and press. Their Website has a wealth of info and resources.