Facebook is due to become a publicly traded company on Wednesday when it will launch with an expected $100billion valuation, but one man in Mark Zuckerberg’s social network won’t be celebrating to the same extent.

Even in spite of the mistake, Mr Green now runs a charitable giving site called Causes and through that as well as the shares of Facebook which he owns, he will still likely make a multi-million dollar profit from the company’s expected launch.

College days: Mr Zuckerberg (far left) and Mr Green (far right) are now back working together, though in an extended way as Mr Green runs one of Facebook's largest applications. The two friends in the center are unidentified.

My father, who’s a professor, was not too happy with the prospect of me getting kicked out of school,’ Mr Green told Good Morning America.

Instead of going on to launch the world’s biggest social network, Mr Green graduated and went to work for John Kerry’s 2004 presidential campaign, and is now running an online charitable giving service that is one of Facebook’s largest applications.

Though he didn’t quit school and launch Facebook in full, Mr Green was a part of the company’s original iteration and helped Mr Zuckerberg create the website’s predecessor. The college boys first made a site called ‘FaceMash’ which allowed visitors to judge the looks of people online.

After getting in some trouble with Harvard over the project- which involved them hacking into the university’s online picture library of students- Mr Green was hesitant to get involved with another internet start-up at the risk of threatening his college education.

‘We’d gotten into a little bit of trouble with the previous project,’ Mr Green said.

Public service and political organizing were two of Mr Green’s passions since a young age, and he was active in the local government of Santa Monica, California, where he grew up.

After college, he worked in the field, getting out the vote for Democrat John Kerry’s doomed presidential campaign, but that did not leave him disheartened.

‘That experience made me believe in democracy,’ he told The Los Angeles Times.

Even though he didn’t move out to California with Mr Zuckerberg and crew immediately, he did make the jump to San Francisco when he created a site called Essembly in 2005.