This is a departure from other regimes' attempts to quash online communication — typically, a few websites are blocked, not the entire pipeline. That was the case earlier this week, as Egyptian ISPs restricted access to social media sites like Facebook and Twitter. But today, the shutdown reaches far beyond the protesters to Egypt's entire economy. Cowie's Internet-monitoring firm, Renesys, said "every Egyptian provider, every business, bank, internet cafe, website, school, embassy and government office that relied on the big four Egyptian ISPs for their internet connectivity is now cut off from the rest of the world. Link Egypt, Vodafone/Raya, Telecom Egypt, Etisalat Misr, and all their customers and partners are, for the moment, off the air."