This post is part of our special coverage of Egypt Protests 2011.

In preparation for the fourth consecutive day of demonstrations, activists circulated pamphlets and shared videos via the internet, urging people to join Friday's planned protest. The government has reacted by blocking access to many social media platforms before shutting off the whole network very early on January 28. Loads of video montages are still available on YouTube. A quick roundup:

This clip from hadi15 went viral minutes after it was posted online. Featuring a song from the rock band Thirteen Senses, “Into the Fire,” the video retraces the last three days of street protests, highlighting the diversity among the marchers: young and old; men and women; Muslims, Christians, Atheists, all chant the same slogans; all for one cause.

Anonymous, a loose group of hacktivists advocating for freedom of information online, posted this video on YouTube (Anonymousworldwar3) asking the Egyptian government to cease its censorship activity or else:

sharek2011 posted this video titled Sharek, participate, calling upon people to join the marchers on Friday:

Another video montage from TowardsUnity highlighting the recent days of clashes:

http://www.youtube.com/watch?v=25N2HQ86zJg

The main Cairo plaza, Maydan El-Tahrir where this video was filmed by sarahngb, has been the rallying point of Cairene protesters:

http://www.youtube.com/watch?v=18l2mAhraQ0&feature=player_embedded