What makes a good Podcast?

Name: Miley And Mandy show KCA
Main Topic: Miley Cyrus and her best friend Mandy, try and get people to vote for Miley for the teen choice awards. First place gets a new ipod signed by Miley and Mandy, second place gets a ipod case signed by Miley and Mandy. They're energy is great. I think you would be happy to watch it.
URL:
http://www.youtube.com/watch?v=EWX8b7u_5Rs
Authors: Miley and Mandy
I think this podcast would be a good example for a podcast for my class, because in this video Miley and Mandy are trying to sell there product. It's a good way to get the word out on what you need to say. If in the future if I had a product to sell, I would use this as an idea/example.

Name: Cheek malfunction
Authors: Selina Gomez and Demi Lavato
Main Topic: They're just goofing off with the imac.
URL:
http://www.youtube.com/watch?v=0MIy4uDPz3g
I would not use this as a good example as a podcast because they are just goofing off.

Name:Hoedown throwdown
URL:
http://www.youtube.com/watch?v=hj3OqMzNin4
Authour: Miley Cyrus
Main Topic: teaching the dance the hoedown throwdown.
This is a good example of a podcast. It's informational, and it teaches you how to do the dance. This is a good example of a podcast to me.