Mark Zuckerberg announced today
that he is donating 18 million Facebook shares (almost $500 million worth) to a philanthropic organization called the Silicon Valley Community Foundation.
His donation will be used for health and education projects.
Here's the full announcement from Zuckerberg's Facebook page:
Two years ago, Priscilla and I signed The Giving Pledge, committing to donate the majority of the money we earn to charity.