Launched by a copywriter and digital marketer, the Twitter feed has been publicising details of the evolving story on the fate of the Observer following the news leaked at the weekend that Guardian Media Group is considering its future.
A Facebook group has also been launched and this has signed up more than 2,300 supporters.
One of the options GMG chief executive Carolyn McCall and her team are looking at is the closure of the paper.
Other options under consideration include turning it into a weekly magazine and slimming it down.
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