In coverage of Iran over the past week and especially in these last few days, Andrew Sullivan has on his site illustrated the way the internet and related technologies have permanently changed journalism for the better. So have a number of other people at other sites, which have made themselves clearinghouses for information coming out of Iran in emails, blog posts, camera-phone and ad hoc video transmissions, and other forms including, yes, Twitter feeds. Collectively they've let the outside world know more about what is happening in a would-be sealed-off country, and given people inside that country a place to share and compare news as they could not possibly have done even a few years ago.
This fact is worth noting its own right, as a moment when we see that something truly new and positive has occurred. It's also worth observing in light of the many seemingly-permanent changes for the worse in journalism that have coincided with the internet era, whether or not they've been caused by it.
If I'm not mentioning anything about Iran at the moment, it's not because I think the news unimportant but rather because I have no contacts in the country and nothing to add to the discussion. As we follow developments there it's worth recognizing the different era in communications that has begun.