Mr. Bush: You should be able to instruct all of the doctors that you see to make your records available through a portal, and if you get stuck in an emergency room somewhere, there ought to be an emergency access code, that any doctor in the country can look up your chart.

WSJ: Boss Talk: Updating Doctors' Offices With the Help of Cloud Services

With well over a million developers worldwide (see chart), it is increasingly used, not only as the code of choice for Internet applications, but also as the glue that binds together software in big companies.

ECONOMIST: Strength through Joy | The