That would be Beth Israel Deaconess Medical Center CTO John Halamka, who describes his home weather station, how he got it hooked into Weather Underground and what lessons people who run large, complex computer networks at large, complex health-care providers can take away from it all.

Penny Cherubino reports they're baaack: The thousands upon thousands of Yellow Book directories that just sit there, moldering and falling apart, their pages despoiling the streets (in her case, in the Back Bay).

• 2009: Yellow Books on Beacon Hill: Make them stop
• 2008: Yellow Book: The annoying phone directory

Happened Dec. 12. Anybody happen to see it?

Via Bridesmaiding.

MBTA Transit Police report the first arrest of the year for a smartphone theft, off a woman on a Green Line trolley at Arlington Street station yesterday afternoon.

According to a Transit Police report, Emmanuel Castro, 17, of Roxbury, grabbed an iPhone right out of a woman's hands when their inbound trolley stopped at Arlington around 2 p.m. Police say the woman chased after him from the train and then up the stairs to the street, where where she lost him. But an unidentified man, spotting the two running, figured out what was going on and began chasing Castro himself, calling police as they ran all the way to Fairfield and Beacon streets.

Police say they caught up with Castro at Fairfield and Comm. Ave. where, on a pat frisk, an officer felt something hard and pulled an Apple iPhone 4G in Castro's right front pocket. The officer then called one of the numbers on the phone and was, police say, connected to the woman's aunt.

Castro was charged with unarmed robbery.

Innocent, etc.