About 600,000 bushfire-related terms have been posted to Facebook since Thursday, when the disaster took hold and the skies darkened.
Other posts and images, some from the frontline, have documented the brutal conditions faced by RFS volunteers. One uploaded by Instagram user Bunniesbabe shows a firefighter fronting up to a furnace-like blaze among trees, covered in showers of sparks. There are parched koalas recovering under damp towels, being cared for by vets and volunteers.
Twitter is running hot with evacuation warnings, fire alerts, tales of escape and bravery, with hashtags #nswfires and #bushfires trending highly as the crisis continues.
A social media campaign has also been launched to provide formal dresses, make-up and photography for graduating high school students who have lost everything in the NSW bushfires. The Firey Formal Dress Exchange has attracted more than 1300 followers and allows anyone with a formal dress collecting dust to donate it to someone in need. Visitors to the page are encouraged to help their "sisters who have lost their formal dress in the fire".
The page's creator Maddi Ventura, who finished school last year, said she was inspired to set up the page after hearing her friend's sister had lost her wedding and bridesmaid dresses in the fires.AAP