Brian J. Nielsen was so kind to send some awesome pics, of his boxes A500 and Vic20
Vic20 Programmers Reference Guide has been updated. It was missing the Schematics. These are now added to the back of the PDF.
And as a bonus: a pdf with only the schematics has been added. Lets call it the René Pedersen edition, as a talk with him, made us aware of the missing schematic.
The Commodore Disk and Printer Handbook
VIC20 Programmers Reference Preliminary Draft.
Tooth Invaders (German) VIC1938 added to openretro.org and here.
VIC20 40/80 Zeichen Karte, thanks to Sven Petersen
Books -> Development -> 8-Bit Development
Introduction to BASIC Part 1 and Part 2
Jelly Monsters and Rat Race danish manuals for VIC 20, thanks to Uffe Jakobsen.
Brinck br824a – electronics diy for C64 and Vic20 (Danish), thanks to Peter Krogtoft.
Compute!s Commodore Collection Volume two, thanks to Peter Krogtoft.