Websites
Sprawling site with loads more than just pretty pictures. Includes, amongst others, a piece witten by former trainee nurse working at Cane Hill during the 60s.
These two sites capture the impressive amount of abandoned places and the UK's industrial infrastructure that once existed.
For those that think Englands Capital is lovely. Come and view the otherside of the fence - you won't believe the amount of dereliction!
Lots and lots of crazy abandoned and derelict ex-soviet stuff.
A site dedicated to all things underground and man-made.
Has a large collection of pictures and reports on all sorts of abandoned and derelict sites in the UK.
Books
A book about his journey around the M25. Not to be put off by the subject matter, there are a few sites of interest he comes across even though now, most have gone.
If in a recession you're made of money, then this may be a really interesting read. It's about what life was like at Severall's Hospital from the perspective of both ex-employees and the patients.
A book of hidden gems around London. Made by the same Paul who makes the derelict london website. Many sites have gone but there are a few still left standing if you know where to look.
Hazards
A site providing health and safety advice and guidance for those who may be exposed to asbestos and advice on what to do to protect yourself and others.
If you see something in an old hospital/testing lab and want further info on it, it'll more than likely be in this list.