What's the point?
In this article, InformationWeek is pointing to several of the most successful companies of the twenty-first century and effectively saying, "Whoa! You don't have enough black people, latinos, or women. What's up with that?" But these companies are doing things no one else is, in new and exciting ways, and making fortunes in fields that established companies have not generally pursued business or succeeded.
It's not surprising that Google's workforce is primarily male and either Caucasian or Asian, because these are the demographics primarily correlated with engineering in general and software engineering in particular. It also makes no difference, because it's not holding back innovation. The reason companies value diversity is because it leads to corresponding shareholder value. Diversity is not about conforming to some social-engineering checklist.