People are becoming much more interested in self-monitoring and gathering personal informatics. You can see this as exhibitionist (“what’s left to share? raw data!”) or as purely selfish (“I hope to make better decisions and learn more about myself”).

Clamp Fitbit ($99) is a new device that keeps tabs on your fitness, even when you’re asleep. It has a motion sensor that records your steps and distance covered, as well as calories burned, even how well you slept based on your tosses and turns. This data is wirelessly transmitted to FitBit’s site when you get near its base station (hooked up to a computer), then you can chart your data graphically.

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