Thousands of Illawarra residents are using Facebook to check out photos of your nanna.
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"Lost Wollongong", an open community group on the social networking site, has amassed over 4500 members in just five weeks of existence.
The page was founded by David Bottin, Brenden Brain and Debb Cromie Phillips, as a way of allowing past and present Illawarra residents to share photos, memories and history.
"Brenden and I saw on Facebook there were similar pages for Sydney and Newcastle, but nothing for Wollongong," Mr Bottin said.
"It's to let people discuss the heritage and community of the Illawarra."
Mr Bottin said he had been astonished at the response to the page, with more than 2000 images already uploaded, chronicling everything from Prime Minister Robert Menzies opening the Port Kembla hot strip mill in 1955 and pictures showing the progression of Wollongong city, to school photos and weddings.
"There's a lot of community pride. The Illawarra is a very tight-knit community," he said.
"It's a proud community with a keen history."
Many members are also using the page to connect to old friends, organise school reunions, and reminisce about life in the Illawarra.
"The page is anything the membership want it to be," Mr Bottin said.
Illawarra heritage seems to be in vogue at the moment, with Lost Wollongong just one of several efforts to chronicle and celebrate the region's history.
Libraries around the region have teamed up for the Illawarra Remembers project, working to establish an online resource of Illawarra people involved in World War I to commemorate the centenary of the war's 1914 beginning.
Libraries are calling for people to bring letters, postcards, medals and any other war documents or information to their scanning days.
Information will be copied and uploaded to an online trove, and link to resources from the Australian War Memorial and other archives.
"We're asking the community to share stories and treasures from their collections," said Marisa O'Connor, local studies librarian at Wollongong library.