When it comes to online censorship and monitoring online activities, the first country that usually comes to mind is China and its Great Firewall. This, however, may soon change, as it seems that Iran has built one of the most advanced systems for monitoring all online traffic, with the help of technology built by Nokia and Siemens

Let s go over some of the ways the Iran situation has affected social media. First, Twitter rescheduled its downtime because it s been instrumental to communication from protesters. Facebook launched a Persian translation to help facilitate discussion. Google Translate released Farsi support so English users could understand Farsi communication easier. And YouTube, Twitter, and the blogosphere have been on fire.

"Today you are the media, it is your duty to report and keep the hope alive", reads the latest Facebook update from Iranian opposition presidential candidate Mir Hossein Mousavi

As we reported earlier this week, thousands of Iran-related videos are being uploaded to YouTube() every day, revealing first-hand accounts of the crisis to the world. Some are incredible, some are eye-opening, and other shock you to your very core. We ve included ten of these incredible videos, in a chronological order that helps provide context to the crisis in Iran. Be prepared, for these videos can evoke some very strong emotions: