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

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/

About.com on Aviation and Aerospace
Supply chain management is an important subject for global businesses and small businesses alike. It is vital for companies to achieve benefits of adopting a successful strategy for an efficient supply chain in any economic climate. These articles will help you become more familiar with the subject and the concepts and ideas that are used.
http://logistics.about.com/library/blaviationaerospace.htm

JSfirm Aviation Employment Service
JSfirm aviation employment service provides aviation employees access to aviation jobs such as avionics, engineering, pilots, sales, maintenance, A&P, executive, aerospace, and management
http://www.jsfirm.com/

Human Factors in Aviation Maintenance and Inspection
From the Federal Aviation Administration Office of Aviation Medicine. Site includes documents, research and development, training, job aids, and conference information.
http://hfskyway.faa.gov/

The Campbell-Hill Aviation Group, Inc.
Aviation and economic consultants serving airlines, airports, integrated express carriers, aviation trade groups and government agencies. Details on the services, clients and personnel.
http://www.air-econ.com/

Aviation Now
Aviation Week's online news service for the aerospace, space and aviation industries with the latest breaking news and top science and technology stories.
http://www.aviationnow.com/

Aviation Resource - Aviation History
Traces the history of flight from 400BC to present. Provides a short narrative of each major event in the development of aviation over the period.
http://www.geocities.com/CapeCanaveral/4294/history/