Iranian authorities dislike weblogs and people who try to promote blogs.

A Canadian blogger was recently detained in Iran and forced to sign a letter of apology because he posted instructions on the Internet in Farsi on how to set up a weblog.

Infact, after China, Iran has the most sophisticated systems to filter internet content. But unlike China where politics is the main issue, Iranian bloggers rarely discuss politics.

The most common issues are cultural, social and sexual. Blogs also are a good place to chat in a society where young men and women cannot openly date. There are blogs that discuss women's issues, and ones that deal with art and photography.