You can let me narrow things down by genre or keywords, and you can collect data on how much I read of a first chapter, or how fast I move on to the next blind date, to see just how well I get on with any given book so that you can tailor the next blind date to my evolving preferences.

FORBES: Book Discovery: Give Me Blind Dates With Books

This one provides off-line GPS tracking (read: cheaper than real-time) of your vehicle so you can see when, where, how fast and how aggressively your teen is abusing the family getaway-mobile.

ENGADGET: DriveSync tracks your kids' joyrides