AAIR – Aviation Archaeology in the USA, and some over here
Accident Reports – Mike Stowes site include a list of WWII – 1955 USAAF/USAF accidents in the UK and Ireland.
ADF Serials – Site listing Australian military aircraft serials and numerous crashes.
Aircraft Crashes in and around the North Yorkshire Moors – Richard Allenby’s site covering the North Yorkshire Moors, Pennines and Lakes.
Dive The World – has numerous photos of under water wrecks from around the world.
Wight Air Wrecks – aircraft crash site on the Isle of Wight.
Useful Aviation Forums
The Aviation Forum – (including the former Flypast Forum)
Other Aviation Related sites
No.19 Operational Training Unit – The history of the unit 1940 – 1945.
Sites with non-specific connections to aviation
Non Aviation related sites
Bolehill Cottages – Peak District Holiday Cottages