I was web surfing for porn.
Really. Was part of my job. The company I was working for at the time was working on a "child safe browser". Part of my job was to find porn sites and make sure we blocked them.
After the first plane hit we all more or less migrated into the owners office where he had a very large TV.
As it happened, our next round of venture capital was coming from a company in the WTC. The company I was working for started bouncing paycheck shortly there after.