Some useful and interesting links, in no particular order:
Greens For HS2. A very detailed site produced by Green Party members & councillors dispelling the myths regarding HS2
Severn Valley Railway – one the the UK’s premier heritage railways
Seat 61 – THE definitive guide to world rail travel
Railforums – UK railway discussion forums, a huge amount of knowledge and information
The Heart of Wales Line – one of Wales’s loveliest railways
5028 Llantilio Castle. Site with a very detailed history of GWR Castle Class 5028 the only Castle Class loco to be withdrawn as a result of an accident.
Looking for books? Try Abe Books, portal to independent booksellers worldwide, click the link below for free UK postage
When the left luggage point at the station isn’t convenient I use Radical Storage. The network of shops and other outlets worldwide keeps your bag safe and it’s all managed through the app. So if you arrive in a city with no local currency and the station lockers don’t take card payments, Radical Storage will work. This is an affiliate link that earns me a small commission when you join.