"I'm not a hero, you are the heroes, you're the ones who stayed on this square," Ghonim said to the crowd. "You must insist that your demands are met. For our martyrs, we must insist," he said, before being cut off by the crowd chanting: "We want the regime to fall."
He was more succinct on his Twitter feed (Ghonim): "Dear Egyptians, Failure is not an option." Ghonim was already an anonymous champion of the opposition, working as a cyberactivist mobilizing pro-democracy protests through a popular Facebook page, when he was arrested on Jan. 27 during protests in Cairo.
Google's marketing chief for the Middle East was then held blindfolded by the Egyptian security service for 12 days and has been thrust into the centre of events since his release.
At an impromptu news conference later, Ghonim, 30, said it was impossible to call the uprising a "Facebook revolution. "After seeing the people right now, I would say this is the Egyptian people's revolution. It's amazing." And he praised his fellow demonstrators as "dreamers." "We are all dreamers. When I created that Facebook page event, I was a dreamer and I believe all of us were dreamers," he said. "Egyptians deserve a better life. Today one of those dreams has come true, which is actually putting all of us together and believing in something."
Ghonim appeared in an emotional interview on Egypt's Dream 2 television channel, and his powerful reaction has since become an Internet hit in Egypt and beyond and a vital recruiting tool for the protest movement now entering its third week.
"I was blindfolded for 12 days, I couldn't hear anything, I didn't know what was happening," he said, recounting his ordeal, which inspired expressions of concern from around the world.
Mubarak, who came to power in 1981, has ruled for Ghonim's entire life. AFP correspondents said the demonstrations against his regime on Tuesday were the largest since the revolt began on Jan. 25.