Here are statistics on the anti-government protests, arrests and deaths in Iran. The webpage includes a map showing where incidents have been reported, and graphs showing the numbers of protesters on different days and the levels of lethal violence deployed against them. Looks like the website is maintained by the American Enterprise Institute, but it doesn't openly say so.
And here's a description, from a medical student, of what happens to protesters taken to hospitals. It includes the authorities carting away the dead bodies before they can be identified. (Thanks to Jihad Watch.) No wonder CNN is reporting this morning that parents are searching high and low for their children.