Social networking site Facebook's founder Mark Zuckerberg has agreed to donate a whopping $100 million to improve the troubled public school system in Newark city, a media report said.

Twenty-six-year-old Zuckerberg is to announce the donation on the Oprah Winfrey Show to be aired on Friday, The New York Times reported, claiming that the gift would actually be the first instalment in an education endowment started by him.

The proposed donation would be by far the largest publicly known gift by Zuckerberg, also the chief executive of Facebook, whose fortune was estimated last year at $2 billion by the Forbes magazine.

The gift is many times larger than any the system has received before, and amounts to one-eighth of the $800 million annual operating budget.

It was not yet clear how the money would be used, the report said.

The newspaper said the gift would be made with the condition

The state currently runs the system in the troubled city.

The report said that Zuckerberg had no connection to Newark, but that in July he and Booker met at a conference and began a conversation about the mayor's plans for the city.

Zuckerberg's act of public generosity would come a week ahead of the October 1st release of The Social Network film, a Hollywood take on the birth of Facebook that casts a harsh light on its founder.

Facebook has not sanctioned the film, which is based on the book The Accidental Billionaires, and takes viewers back to Harvard, where Zuckerberg was a student with dazzling computer skills who didn't fit in.