Beginner Training Series

Horizon Hobbies offers an excellent and comprehensive training series on YouTube.  The series is a bit wordy and long, but not overly commercial.  This is a good overview of all you need to get started. 

How to Choose Your First Plane
Basic Aerodynamics
R/C Control Systems
Launching and Landing
Flying Your Plane
Power Systems
Batteries and Safety
Crashing and Repairing