Algorithm Visualizer - Write down your algorithm to be visualized
Algorithmia - Algorithmia makes applications smarter, by building a community around algorithm development, where state of the art algorithms are always live and accessible to anyone.
Grokking Algorithms - An illustrated guide for programmers & other curious people
The Algorithm Design Manual - Learn about designing and analyzing algorithms
CodeAnalogies - Visual explanations of web development topics
Algorithm-Driven Design - 40+ resources on how AI is changing product design