Why is blue the corporate color?

The color blue is omnipresent, you can find most of the corporate logos, themes, websites have a higher percentage of the hue blue, or at least a tinge of blue. So why blue the favorite color of corporates?
This is what about.com says about the color itself.
"Calm and Cool : Blue is calming. It can be strong and steadfast or light and friendly. Almost everyone likes some shade of the color blue."

The favorite color of men is blue and as you know most of the corporates are headed by men bosses/CEO's, their choice is blue.

corporate logos that contain blue:
HP
DELL
SAP
GE
Walmart
citi bank
Bank of America
Philips
Samsung
Nokia
American Express
Jet blue
Southwest airlines
Pepsi
Ford
BMW
Honda