We Facebook users have been building a treasure lode of big data that government and corporate researchers have been mining to predict and influence what we buy and for whom we vote. We have been handing over to them vast quantities of information about ourselves and our friends, loved ones and acquaintances.

Think 'Game of Thrones.' In the old days, this sort of show might be considered bad writing. It doesn't really seem to be moving toward a crisis or climax, it has no true protagonist, and it's structured less like a TV show or a movie than a soap opera.

Everything we do in the digital realm - from surfing the Web to sending an e-mail to conducting a credit card transaction to, yes, making a phone call - creates a data trail. And if that trail exists, chances are someone is using it - or will be soon enough.

Our technologies become more complex while we become more simple. They learn about us while we come to know less and less about them. No one person can understand everything going on in an iPhone, much less pervasive systems.

Invest in people who will take care of you when you're old.

Microsoft's new OS, Windows 7, may finally be a worthy successor to XP, eliminating the clutter of Vista and letting users get to what they want to use without the fuss. All this, while remaining compatible with their IT departments' demands for scalability and custom implementations.

Books have souls. Or so romantics like me tend to think.