Victims and survivors of the New Zealand earthquake are using the web as a virtual crisis centre, searching for missing people and even offering survivors a place to stay.
Information is flowing out from Christchurch to sites such as web giant Google's Crisis Response service where people can add or request information on individuals.
The site's person finder tool has records on around 8,000 people in the area. But a random search illustrates the confusion in the shattered city.
People searching for a man named John Bing have been told in one message "fatal injuries sustained as result of continuously falling debris", whereas another message says he is "safe and sound, with other Telecom employees."
Google offered similar services for victims of the recent earthquakes in Chile and Haiti , and later used its Google Earth satellite imagery service to capture the scale of the devastation.
The site has emergency telephone numbers and other resources such as a link to donate to the New Zealand Red Cross.
And the New Zealand Herald newspaper's website has scrolling updates from micro-blogging site Twitter and social media giant Facebook.