CAA – General drone information on the UK Civil Aviation website
CAA CAP 722 – CAA document that provides guidance and policy on the operation of unmanned aircraft systems
https://www.caa.co.uk/data-and-publications/publications/documents/content/cap-722/
FPVUK – National association for UK drone flyers
TheDroneMap – Provides maps and airspace information to help you plan drone flights safely and lawfully.
DJI – Official DJI UK Website