The following links may be of use to you:
- AOPA Pilot Education
- Association of Remotely Piloted Aircraft Systems (ARPAS)
- British Balloon and Airship Club (BBAC)
- British Gliding Association (BGA)
- British Hang Gliding and Paragliding Association (BHPA)
- British Microlight Aircraft Association (BMAA)
- CAA UAS/UAV Information and Guidance
- Light Aircraft Association (LAA)
- SKYbrary - Portal:Toolkits
- Airspace & Safety Initiative