Toxic Waste's C65 Information Page
Only two chapters of the never-finished handbook can be found in the internet, i don't know if they ever wrote more than this. Chapter 1 contains general information about the C65 and the techspecs, Chapter 3 describes all (this means even the unimplemented) basic instructions, the monitor and the kernel entry points.
Memory locations and structure of the C65 bitmap graphic
Right after i got my C65 i had some trouble copying files. Here's how i solved it.
A textfile written by me explaining the screen commands.
How to make a autobooting disk.