Learning more about photography is good.
Here is a good place to go to learn all about every aspect of photography.
All indexed by subject.
Shutter speed - CHAPTER 1. CAMERA CONTROLS & CREATIVITY
Focal Length - CHAPTER 5. UNDERSTANDING LENSES
The on-line photography handbook for the amateur photographer.
I am using Fuji Finepix s1800... i am a armature photographer..i want to know about what is shutter speed? how can i adjust it? what is focal length? what is the use of adjusting the focal length? how to adjust it? will appreciate experts help.