Stock Video Websites

  1. http://www.coverr.co
  2. https://videos.pexels.com/ 3.

Video Communities

  1. Motion Corpse - animation community with publicly shared After Effects source files
  2. Animography - animation community with publicly shared After Effects source files
  3. 9 Squres - An international motion design collaboration.

Video Tutorials

  1. Welcome to After Effects - 2013 article to help get started with After Effects