Kristjan Zadziuk is an animation director at Ubisoft and has a bunch of great youtube videos that include game animation, motion matching, showreel reviews and more!
Kristjan Zadziuk – Youtube
Artstation
Artstation – Mostly dominated by artists but still a good place for animators to upload their work
Vimeo
Vimeo – A great website for submitting animations, creating a profile and connecting with other animators
GDC Vault (FREE)
GDC Vault has a bunch of free animation talks, get them in your face now!
Animator's Resource Kit 