The sweetest sight I've seen in ages: riot cops, running away.
...Among other things, people all over the world can join in helping the people of Iran protest against an unfair, rigged election. If you can't be in Tehran to shout and throw rocks, you can install tools on your computer to help participate in a Distributed Denial Of Service Attack against official government sources, and help keep the lines of communication open to the people on the streets... despite all official efforts to shut them up. Anyone with Internet access can do this.
Even an astrologer.
Oh, and in the event someone from the Iranian government is reading this and has a problem with it? Four words:
Sic semper tyrannus, bitches.