Ray Ozzie doesn't update his blog regularly, but when he does magnitude of his thoughts often make up for lost time.  His writing on "Extreme Mobility" is a Must Read if you care about where the computing world is going.  At least it made me think furiously for an hour.  There is a slight push on Groove, but that's what he should be doing anyway.  Unbiased world is so boring like a sugarcane sucked dry.