Great Resources

Important Articles

Papers with code. Awesome resource that contains links to original papers as well as their implementation and leaderbords
Towards Data Science. Daily updated collection of articles on machine learning and data science concepts. You can also contribute articles on this.
https://colah.github.io/. Very nice explanation of concepts like CNN, RNN and many more with nice visualizations
http://jalammar.github.io/. Simple explanation of advanced NLP topics like attention, transformers, BERT etc.
http://ruder.io/. Blogs focused on NLP, Transfer Learning and Multi Task Learning
http://karpathy.github.io/. Few good blogs on Reinforcement learning
ML Mastery. ML and DL concepts in practical way with implementation details
AI Trends. Latest News on AI

Elements of AI Course for beginners to understand the basic logic. Has a completion certificate.
Introduction to Deep Learning. Free Berkeley Course, includes lectures and assignments.

Linear Algebra explained graphically Set of videos explaining linear algebra differently (using visual demonstration)