Fun with PETSCII! - by Dan Sanderson - Dan's MEGA65 Digest
MEGA65 Welcome Guide documentation
Does it make sense for younger programmers (that have grown up with protected mode operating systems) to learn to program classic computers like the Commodore 64? - Quora
NOVALOAD – Commodore Speed Load and Protection System Hacked. – www.muckypaws.com
Cross Development for Fun and Profit, part 1
Commodore 64 - Wikipedia
Amazon.com: Customer reviews: The C64
Back to BASICs - by Dan Sanderson - Dan's MEGA65 Digest
Programming Books, part 3: Programming the Commodore 64 | The Reinvigorated Programmer