For scientific and solid evidence about Iranian public opinion, i turn to New York Times analysis: 12,000 Facebook likes

"the call has provoked a large online response centering around the “25 Bahman” Facebook page, a reference to the rally’s date in the Persian calendar. In less than 24 hours, the page attracted a slew of comments, promotional posters, videos and more than 12,000 “likes” from online activists..."