Aviation
Aeroseek - http://www.aeroseek.com/
Exclusively aviation oriented search engine organized into categories.
Aircraft Partnership Portal - http://www.aircraftpartnership.com/
An initial meeting place for pilots who want to meet other pilots for the purpose of co-ownership of an aircraft.
Aviation News - http://www.aviation-news.co.uk/
Providing the best coverage on every branch of aviation - such as historic warbirds, military aircraft and airliners.
Aviation Reference Desk - http://www.avrefdesk.com/
Strives to bring you the best, most recent data straight from authoritative sources.
Aviation Week - http://www.aviationweek.com/
Dedicated to connecting aerospace and defense industry professionals from around the world by offering a variety of information and services to the communities. Also includes events, forums, photos and videos.
BestAviation.net - http://www.bestaviation.net/
Flight school and pilot training directory listing aviation schools world wide.
ExperCraft, LLC - http://www.expercraft.com/
A place to docucment and research experimental aircraft homebuilding and flying.
FirstFlight - http://www.firstflight.com/
A flight school providing online flying lessons. Learn to fly and become a private pilot.
Flightinfo.com - http://forums.flightinfo.com/
An online aviation forum, for all aviation realted chat.
Pilot Getaways - http://pilotgetaways.com/
A bimonthly magazine offering information on travel destinations, and articles on accommodations and restaurants for pilots and their families. Also includes FAQ's, flight planning, and feedback.