SktechUp Links

Official SketchUp Training Videos
Google SketchUp

Excellent SketchUp Forum
SketchUcation

Tutorials, Tips & Other Resources
SketchUp Artists

Google SketchUp YouTube Channel
SketchUp Video Channel

SktechUp Blog with Other Resources
Google SketchUp Blog

CInema 4D : Getting Started

Some great intros I found online:

Layout
Primitives
Materials

Made by danonabouncycastle via YouTube.
Getting Started with Cinema 4D - User interface and Navigation
Getting Started with Cinema 4D - Basic Modeling