On Animation is a website filled with animation analysis, behind the scenes, podcasts and more. Check it out!
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 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!
Tea Time Animation is a website and forum run by Lana Bachynski (Blizzard) that has a bunch of great advice and resources for animators.
Animation Buffet is a great resource for free Rigs and is constantly updated by Jean-Denis Haas (ILM)
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!
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.
Artstation – Mostly dominated by artists but still a good place for animators to upload their work
Vimeo – A great website for submitting animations, creating a profile and connecting with other animators