I do not have the time and resources to follow the many developments in Iran. Fortunately, others do! I recommend the following three live bloggers (even though much of their material is hearsay, rumors and unconfirmed reports, they are doing a great job):
Twitter has become one of the most important sources for information right now. Search #IranElections.
Many Iranian websites – both oppositional and pro-government (including, on and off, Fars, Press TV, Balatarin, and Tehran Bureau) – are down due to DoS attacks from both sides; pro-reformist journalists are constantly arrested and sites closed, but more often than not, they are freed and sites opened again after short time.
I will bring a list of good analyses later today…