http://money.cnn.com/2014/06/26/technology/facebook-diversity/index.html?iid=HP_LN&hpt=hp_t3

(...)
The facts show that 69% of Facebook's global staffers are male. A full 85% of the company's tech workers, and 77% of its management team, are also men.

The company's U.S. workforce is 57% white, 34% Asian, 4% Hispanic and 2% black.

"As these numbers show, we have more work to do -- a lot more," Maxine Williams, Facebook's global head of diversity, said in a statement.
(...)

Yahoo (YHOO, Tech30), one of the most prominent Silicon Valley companies with a female CEO, has a U.S. workforce that is 50% white and 39% Asian. Only 6% are either black or Hispanic.