I try to continuously review these PDFs that are online for download. I will try to categorize them as best as possible. I cannot be responsible for broken links.

A

Amateur Radio Emergency Service® (ARES®)

1. Amateur Radio Emergency Service® Manual (March 2015)
2. ARES® Field Resource Manual
3. ARES® Registration Form
4. Various ARES forms and documents.




ARRL Technician License Manual; 3rd Edition and here.
This manual is used for the 2014-2018 exam cycle. Although a new exam will be used beginning July 1, 2018, this manual will still be useful for the new exam cycle. It still gives you most of the information.