Facebook wants to help you share your organs.

CEO Mark Zuckerberg says U.S. and U.K. users will be able to enroll as organ donors via links on the world's biggest social networking site.

Facebook users who are already organ donors can add that information to their Facebook Timelines.

Zuckerberg says his friendship with Apple Inc. co-founder Steve Jobs, who had received a liver transplant before he died last year, helped spur the idea.

Zuckerberg announced the organ donor update to Facebook on "Good Morning America".

Facebook Inc., based in Menlo Park, Calif., is busy readying an initial public stock offering said to be pegged at $5 billion. Facebook's IPO could place the company's value at $100 billion.