MapQuest: Generate road maps to get to and from airports and other destinations.

Currency Converter: Convert between world currencies.

World Factbook: Get the facts before you fly there.

Acronym Finder: Contains aviation topics.

FAA's Notam Home Page

UK NATS Aeronautical Information

Search for Airworthiness Directives, NPRM's, etc.

Airworthiness Directives, NPRM's, etc.: Use the above two links to access a search form at the Governement Printing Office servers. There you will find Airworthiness Directives, NPRM's, etc. (Hint: Start with the Federal Register database).

Airline Operators: Contains information pertaining to scheduled airline certification (Part 135 operators), operations, and aircraft counts by make and model.

Air Carrier Fleets Stats: Contains information on air carrier fleets such as aircraft models, monthly flight hours, and engine shutdowns.