On iTunes U, there's a course in the "book", Mobile Journalism: Become a Citizen Journalist", called "Shooting Tips". Here is my reflection.
"Shooting Tips" is all about B-Roll, Rule of Thirds, Wide, Medium, and Tight Shots, and many more.
B-Roll is important because it makes the video interesting. Recording B-Roll requires filming the outside film. For example, if you're filming a soccer coach, the B-Roll you will want to film is maybe the coach helping the teammates learn to play soccer.
The Rule of Thirds is also important in the making of your video. When recording, you don't want to put your subject right, smack-dab, in the middle of the camera. But, everything around the subject distracts from that. So, put an imaginary tic-tact-toe board on the camera, and make sure that your subject is on either side. That way, you focus on the subject rather than the outside footage.
Wide, Medium, and Tight shots are also very important. They help you establish the scene and everything around it. These shots form your setting and lets you get an understanding of the background.