I am following Change_for_Iran on Twitter, which is pointing me to some photo sets and other information on what is happening in Iran right now. Here are two links.
I don't entirely know the value of watching - on one hand it feels voyeuristic. I'm hoping the value is to know, and that's enough to start. I wish there were more we could do.
Here is a very large slideshow of photos from the past couple of days: http://www.flickr.com/photos/fhashemi/sets/72157619758530748/show/. Some of these are very graphic.
Lotfan.org is run by independent group of Iranian individuals living in Toronto and concerned about Iran's future.