I strongly suspect I spend more time exploring the net for digital photography information than many of you are able to do. So I am going to pass on some of the best material I’ve come across from the many sites I frequent.
As you begin to away from using the Automatic setting on your camera, you may begin to play with its Shutter Priority or Tv mode. In this mode, you select how long the shutter stays open to gather the light, and the camera internal sets the F/Stop or Aperture (how wide the lens is opened) to ensure a well exposed picture. The article below describes how to select the best shutter speed to use.
One of my favorite sites for just about everything related to digital photography is www.Digital-Photography-School.com. Below is the link to a recent article posted there on the subject.