Components of tobacco smoke such as carbon monoxide, nicotine, benzene and small particles can easily be measured in the air of a smoker's home or workplace.

CNN: Is secondhand smoke really that risky?

PCs, of course, swept through the workplace and in only a decade most mainframes, and their high cost, air conditioned data centers, were gone.

FORBES: Beware Best Practices, They Can Kill Productivity, Innovation and Growth - Adopt Facebook, Linked-in, Twitter