Air Traffic Control System Command Center . Check airports around the country during inclement weather to see if there are closures or delays. Helps when you have attendees flying into or out of a destination for a meeting.

Expedia.com . One of the best sources for comparing air fares and schedules.

Google Maps .

SeatGuru.com . The ultimate source for airplane seating and in-flight services information.

U.S. Naval Observatory . Sun and Moon rising and setting times (very helpful when planning outdoor events, sunset receptions, etc.)

Weather.com . To keep up with the weather when you're on the road.