Animation Buffet is a great resource for free Rigs and is constantly updated by Jean-Denis Haas (ILM)
Animation Buffet
GameAnim
GameAnim.com is a website created and run by Jonathon Cooper (Naughty Dog). It has a massive selection of animation resources from interviews, tips & tricks, showreels and much much 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.
The Animation Podcast
The Animation Podcast was a podcast by Clay Kaytis that focused on interviews from animation veterans (mainly Disney). It is no longer being updated but still has a bunch of podcasts to listen to.
Bancroft Brothers
The Bancroft Brothers is an animation podcast that provides an entertaining and educational look at animation. Tom Bancroft and Tony Bancroft discuss the art and business of animation with some of the industries biggest talents from Glenn Keane to Brad Bird to Don Hahn.
A Keyframe of Mind
A Keyframe of Mind is an animation podcast hosted by Jenny, Ju Li, Katie and Esther and discuss topics ranging from best practices, navigating the industry and the never-ending journey to improve and grow personal creativity
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.
Animex Festival (UK)
Animex Festival is held at Teesside University and has been getting bigger and better for the past 18 years. It holds talks from the biggest and best talent in both the games and film industry. Highly Recommended if you live in the UK.
Artstation
Artstation – Mostly dominated by artists but still a good place for animators to upload their work
Animator's Resource Kit 