From my point of view:
Bloomington, MN adjacent to the east side of Mall of America
I got a really odd phone call from a friend who worked in a building where the IRS and a member of congress had office space. The call was something like, "Hey, this is really odd, the whole floor below us just evacuated.... GET YOURSELF IN FRONT OF A TV NOW, one of the world trade center towers is burning."
Before I could get to a TV my cellphone rang and it was mom. "Where the hell are you? In an airport, on a plane?" It was a very brief conversation. While I was talking with her I was watching police take up positions to block the access roads to the mall. A steady stream of cars was exiting Mall of America - it was before business hours and the employees were being evacuated.
Got a TV working just in time to see the plane hit the second tower. I knew I wasn't going to get any work done the rest of the day. It was so odd seeing no planes in the sky... I sat at home that afternoon watching the local TV stations from NYC and Washington. I think the smartcard in the satellite receiver must've malfunctioned.