Tough day... I live about 30 miles ourside of Boston, but I was actually in Boston when this went down with my youngest son. I was considered going by the marathon route after his appointment to show it to him, but my wife called and earged me to GET OUT! As I was driving home, I saw 50-60 emergency vehicles FLYING into the city!
Our very close friends were just 20-30 yards from the second blast, we saw their FB posts throughout the day, so we knew where they were! After the blast, the cell towers were shut down for a while so no one could reach them, that was a SCARY 45-60 min, until they posted that they were OK!