I just watched the horrifying video of the girl Neda who was shot and died on the street. There is clearly much, much, more going on here than a simple election protest. However, I don't think turning a website green in solidarity with the protesters or with Moussavi is really helpful - it's the digital equivalent of a "Free Tibet" sticker. It makes us feel better, but nobody in the Chinese government is going to look at our cars and have a change of heart about Tibet.
Like I said before, Moussavi is simply a government-approved candidate who, if he takes power, probably won't be any more of a reformer than Ahmadinejad. At this point, though, it looks like whatever is happening is bigger than Moussavi and has gone way beyond the disputed election. It seems like Iran is at a pivotal moment, where the people are clearly demanding significant change, possibly a major rethinking of their whole system of government. I hope something good comes of all of this, but I have no idea what that might be.
It makes me absolutely sick to see innocents being gunned down by government militias.