The Mountaineers Club has put together a very nice little video that provides some tips and techniques for the beginning level climber. The following video does a pretty good job with its description of:
Face Climbing
Edging and Smearing
Downclimbing
Steep Terrain
The Mantle Technique
The Bear Hug Technique
Opposing Forces
Stemming
The Lieback Technique
Use of a Backstep
The Undercling Technique
The Heelhook
Friction Climbing
Hand Traverse
In seven and a half minutes, the video quickly demonstrates each of the techniques. And while they don't go into depth on any one technique, the do present a nice overview for those who are just starting out.