I recommend anyone with an interest in what is happening in Egypt to watch this powerful interview with Wael Ghonim, one of the web activist leaders of the current unrest.
It is highly emotional, but gives a far better insight into the motivations of at least one important segment of the protest movement than anything I have seen to date. It was conducted just after he was released from detention by Egypt's state security.
(Nb. Hit the 'CC' button in the bottm right corner if you aren't seeing the subtitles.)