International Aviation Online
The FAA Office of International Aviation, the US government's focal point for international aviation policy development and training supporting a safe, secure and efficient global aerospace system.
http://www.intl.faa.gov/

Pilot web magazine
Aviation matters, principles of flight, air navigation, aviation weather, aviation bulletin boards, aviation chat, pilot mail.
http://pilotsweb.com/

Corridor Aviation Service Software
CORRIDOR Aviation Service Software, developed by CONTINUUM Applied Technology, is an enterprise aviation maintenance software solution. For every FBO, Repair Station, MRO and Operator, CORRIDOR allows aviation service providers of all sizes and capabilities to deliver services more efficiently, timely and accurately.
http://www.continuumapptech.com/

National Business Aviation Association, Inc.
Represents the aviation interests of companies that own or operate general aviation aircraft as an aid to the conduct of their business, or are involved with business aviation.
http://www.nbaa.org/

Business Aviation Software Engine
Provides an application software system that supports the business operations of a general aviation company.
http://www.wellingtonroyce.com/

Linux Aviation HOWTO
The Linux Aviation HOWTO provides pointers to software packages that run under the Linux operating system and are useful to private, commercial, or military pilots.
http://www.ibiblio.org/fplan/Aviation-HOWTO/Aviation-HOWTO.html

AIRXL Aviation
Provides advanced pilot training, aviation consulting, and aviation related merger and acquistion services.
http://www.airxl.com

ICAT Aviation
Enterprise Knowledge Portal Implementation
http://www.icataviation.com/

Aero-Space Technology Enterprise
NASA's effort in Global Civil Aviation is focused on developing technology solutions that eliminate barriers to growth for the global civil aviation system.
http://www.hq.nasa.gov/office/aero/

Federal Aviation Administration's Dispersion Modeling Program
Discusses the EDMS (Emissions and Dispersion Modeling System) developed by the U.S.'s Federal Aviation Administration (FAA) and how to order copies.
http://www.faa.gov/about/office_org/headquarters_offices/aep/models/edms_model/