Garvin , you forgot :
- Airgun Collector e-mag ,
- American Airgun Hobbyist magazine ,
- and if I may add the very useful fix and repair blog as a resource :
http://anotherairgunblog.blogspot.co.uk/
Although I am a returner to the topic , these all or at least some have been around for a while I believe and are superb sources of information on older airguns .
If you ever need to reseal anyting Co2 , or a pneumatic and even BSA's , the latter blog which started over 10 years ago ( and is regularly updated ) is superb .