"The story was firstly shared by a Russian journalist who has over 200,000 followers and this is what spread my story like crazy," Mr Gilbert said.
"It was then shared by more and more people with heaps of Russian journalists and reporters contacting me."
Mr Gilbert - a television production assistant by trade - even filmed some footage himself for major news network NTV Russia.
"All of the stories firstly introduce my back story on my adoption and with what I am trying to do now on the page by helping others."
Mr Gilbert runs the I'm Adopted page on his own, though another friend helps him monitor the comments.
He said the feedback had been "incredible".
"A person in the USA recently traced her entire birth family in the USA after posting her story on to the page," he said.
"It is all about helping each other... Seeing other people help others find their roots or someone in their family is incredible."
-Go to www.imadopted.org to find out more about Mr Gilbert's project.