Quanta Magazine - Contains interesting articles from the field of Mathematics, Physics, Biology, Computer Science.
Cut the Knot - Interactive Mathematics Miscellany and Puzzles.
Brilliant - Discover the wonders of math and science in a fun and interactive way! Visit the page and experience the amazement.
Cantor’s Paradise - Cantor’s Paradise is a Medium publication that contains articles related to Mathematics, Science and Technology.
The Mathematical Playground - Free tools, courses and manipulatives to make online learning more interactive and engaging than ever before