Who's Afraid of the Big Bad Internet
Iran.
New Scientist reports that they buttoned up pretty tight prior to the election won this past week by the current rulers.
Maps of internet filtering available at the OpenNet Initiative show Iran with the highest level of filtering in 3 out of 4 categories (and the second highest in the 4th one).
Any familiarity with ethnography will show a Moslem belt of internet filtering running from Morocco to Pakistan. A few Moslem countries on the east and south of that belt seem freer.
The other problem areas are China and Myanmar, and much of the former Soviet bloc.
What are they so afraid of? Britney? ope
