Modeling & Rendering
Free tutorials mainly for modeling and rendering in Vray and Rhino.
Tons of great user submitted tutorials on a wide variety of topics. Mainly for polygonal modeling.
Great for all lessons on rendering theory and concepts.
Great tutorials for Cinema 4D.
Lessons ranging from concepts fundamentals to specific software tutorials.
Rendering tutorials for both 3DS Max and Rhino.
Autodesk's database of tutorials for their products and 3rd party plugins, allows you to search by software.
Great tutorials covering a wide range of topics, mostly for 3DS Max and Vray.
TurboSquid's great collection of lessons for Vray materials set up as well as good modeling practices.
Excellent designer in 3DS Max, mostly weapons and concept art.
Youtube channel with great tutorials for Marvelous Designer (downside: he doesn't narrate the tutorials all the time and he plays bad music instead)
Video Editing & Motion
Tutorials for After Effects and Premiere.
Modeling and motion graphics in Cinema 4D and After Effects.
Great tutorials on motion graphics in After Effects and occasionally Cinema 4D.
Vimeo page to get the basics down for using Grasshopper in Rhino.
Sample projects with code used to create algorithmic designs via Python in Rhino.
Professor from Pratt University with tons of tutorials on Algorithmic design via Grasshopper in Rhino.
Great tutorial library for small projects in Grasshopper, includes project files.
Library of free videos to take you from beginner to expert.
Premium Tutorial Websites
One of the best if not the best tutorial site for creatives. Tutorials on over 100 softwares complete with project files. Worth the money if you use it consistently.
Workshop style classes on a wide variety of topics from logo design to rendering. Anyone can teach a class as well. Membership is around $10 a month.