Online References:
Airman's Information Manual (AIM pdf)
Federal Air Regulations (FAR's)
AC-U-KWIK Global Airport and FBO Information (includes Control Tower Phone Numbers)
FREE Pilot's License Study Materials:
FAA Pilot's Handbook of Aeronautical Knowledge
PART 91—GENERAL OPERATING AND FLIGHT RULES
PART 61—CERTIFICATION: PILOTS, FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS
FAA Aviation Handbooks & Manuals
PAID Pilot's License Study Materials:
PAID Pilot's License Study Materials
Flight Planning:
Flight Service 1800wxbrief.com
Flightradar24 / Flight Tracking
ADS-B Ground Station Locations
VFRMAP - Digital Aeronautical Charts
Weather:
Flight Service 1800wxbrief.com
ADDS - Aviation Digital Data Service
MnWAS Direct Link for Registered Users
AOPA Weather (AOPA Members)
Flight Safety:
NTSB Aviation Accident Reports
Military/Hazardous Operations:
FAA Special Use Airspace - Military Active Status
Defense Internet NOTAM Service
Service Bulletins:
Van's Aircraft Service Bulletins
Buy-Sell:
Organizations:
EAA - Experimental Aircraft Association
EAA Newsletters - Special Interests
AOPA - Aircraft Owners and Pilots Association
TIGHAR - The Earhart Project and more
News / General Info:
Minnesota Department of Aeronautics & Aviation
Avweb - Aviation News Resource