Zweifuss is a website that displays the sprite animations for Street Fighter 3 – Third Strike. Great for reference material and for just admiring the lovely sprite animations.
Zweifuss
Spungella
Spungella is a blog run by Jean-Denis Haas that is constantly updated with inspiring animations, short films, progression reels and more. A great resource for inspiration!
Animation Exchange (2017)
Animation Exchange was an 8 hour twitch stream hosted by a bunch of lovely animation veterans. The aim was to take the knowledge sharing and powerful community of art and development conferences and make it accessible to all, and it was awesome!
Alejandro Garcia
Alejandro Garcia has a huge Youtube video series all about physics in animation, covering topics like forces, weight shift, jumping and more!
Animstate Forum
Animstate Forum is filled with some amazing industry veterans and also has a lot of other resources across the rest of the website.
12 Principles of Animation
12 Principles of Animation – Alan Becker has made a video series highlighting each of the 12 Principles of Animation as described by Frank Thomas and Ollie Johnston in their book “The Illusion of Life”
Syncsketch
Syncsketch is a really useful free website for posting work and receiving feedback. Just upload a video and allow others to review, draw and make notes.
Animation Paper (FREE)
Animation Paper is a popular free software for hand-drawn animation created by Niels Krogh Mortensen
The Illusion of Life
The Illusion of Life by two of Disney’s ‘Nine Old Men’, Frank Thomas and Ollie Johnston is another must-have book. It is basically a bible of animation and explains everything about the history of animation, where the principles and techniques came from and more!
Animator's Resource Kit 