No accidental theme this week.

• Mermaid: Markdown-like generation of diagrams and flowcharts from text. (via)
• Quarterstaff: The Infamous Puzzle and Quarterstaff: “Deathbots” vs. “Ordinary living things”.
• Early days: the VIC-20 Programmer’s Reference Guide.  (via)
• Encrypted Gopher.  (via)
• SSH Client Configuration Tricks.  (via)
• Computer historian job opening at the National Museum of American History.  (via)
• The Game of Everything, Part 7: Civilization and Government I (Despotism, Monarchy, and the Republic).
• Flickr Commons, hopefully surviving the smugmug acquisition.  (via)
• Xenographics: Weird but (sometimes) useful charts.  (via)