This is currently only a very limited index of the things I enjoy on the internet. I'll do my best to update it every so often with new Cool Things.

Software

• Ondsel: FreeCAD, but usable
• Zip-o-mat's Slic3r: Nonplanar slicing!
• WORHP: decent NLP solver (SQP method) whose name stands for We Optimize Really Huge Problems (helped me fix my life)
• ForcesPRO: create fast embedded optimizers, for free!
• fuckit.py: the greatest python library to ever exist. "This module is like violence: if it doesn't work, you just need more of it."
• qlock, a js quine clock

Hardware

• RepRap: the wonderful project that brought low-cost rapid prototyping to everyone
• Odrive: a beautiful, open-source brushless motor driver
• Rack Robotics Powercore: Wire EDM for everyone
• Rotoforge: an innovative, cheap approach to metal 3D printing
• Poma Lifts, so many bandaid solutions piled together that it's an engineering marvel

Art

• code poems, my poetic artifice (screw you, veronica)
• lemonthink: the last emoji you'll ever need
• the Bakalakan Language: Maxter's conlang

Books

• Shigley's Mechanical Engineering Design, one of the hardware bibles
• Principles of Robot Motion: Theory, Algorithms, and Implementations, also known as the software bible or the blue book
• media.catboy.camp, a repository of higher level math, physics, and robotics texts, research papers, and delicious recipies

Articles

• Maxster's structured concurrency for Java robots
• Fire Schewchuk; or, Tales from CS189

Misc

• mkremins' gender quiz: solve your identity crisis today. The last gender quiz you'll ever need.
• Kuriosity Hardware Wiki, a snapshot of the documentation I wrote for Kuriosity hardware. Not actively maintained.
• AstroAlpaca, a fun game