Here are some great videos to help you get started making Tele turns, or to help you improve your turns and inspire you to tackle new terrain.  

Three Videos From PSIA - Beginning, Intermediate and Advanced Tele Movements:

From the Palatinate Ski Association in Germany:

Bark!  by Jim Lyall
Telemark Backcountry Skiing in the Trees of Vermont 
(possibly the greatest ski movie you'll see on YouTube)