Here's a set of videos that starts out with very basic pet training.
HowStuffWorks "Top 5 Dog Training Videos"
And here's some videos of obedience competitiong. Very few people train their dog to this level, but it's wonderful to watch.
[ame=http://www.youtube.com/watch?v=KPyp4VOd6Q8]YouTube - Claire at Crufts 2011 Dog Obedience Competition[/ame]
Notice how the trainer keeps her left arm (the one the dog is focusing on) very still and slightly bent at her side, while her right arm swings normally.
[ame=http://www.youtube.com/watch?v=GAXBndF0SJM&feature=related]YouTube - Gundi - Obedience Competition Class II - Caogurus 08/12/2010[/ame]
Love this one. The dogs are doing the "down-stay" exercise. The German Shephard is doing everything he's supposed to. But watch the sneaky Dalmation next to him...
[ame=http://www.youtube.com/watch?v=IFICdFnaBgI]YouTube - Atlas the Pomeranian: BASIC DOG OBEDIENCE: training and care by Bruce Andrew Peters[/ame]
Some very basic training of a Pomeranian, showing some hand signals. Notice how the trainer keeps his hands and arms crossed in front of him, and very still, when he wants the dog to remain in position. He only moves his hands to give the dog a specific command. This helps the dog concentrate; make sure your hands are only moving when you want to give a message to your dog.
If you google or do a search on youtube for "dog obedience training" or "dog obedience competition," you will find literally thousands more.