Reports Without Borders has shipped a free guide for "Bloggers and Cyber-Dissidents" on publishing anonymously without getting fired, imprisoned or executed.
Bloggers need to be anonymous when they are putting out information that risks their safety. The cyber-police are watching and have become expert at tracking down "trouble- makers." This handbook gives advice on how to post material without revealing who you are ("How to blog anonymously," by Ethan Zuckerman). It's best of course to have the technical skills to be anonymous online, but following a few simple rules can sometimes do the trick. This advice is of course not for those (terrorists, racketeers or pedophiles) who use the Internet to commit crimes. The handbook is simply to help bloggers encountering opposition because of what they write to maintain their freedom of expression. However, the main problem for a blogger, even under a repressive regime, isn't security. It's about getting the blog known, finding an audience. A blog without any readers won't worry the powers-that-be, but what's the point of it? This handbook makes technical suggestions to make sure a blog gets picked up by the major search-engines (the article by Olivier Andrieu), and gives some more "journalistic" tips about this ("What really makes a blog shine," by Mark Glaser).
Some bloggers face the problem of filtering. Most authoritarian regimes now have the technical means to censor the Internet. In Cuba or Vietnam, you won't be able to access websites that criticise the government or expose corruption or talk about human rights abuses. So-called "illegal" and "subversive" content is automatically blocked by filters. But all bloggers need free access to all sites and to the blogosphere or the content of their blogs will become irrelevant.