Black and white photos are just amazing. To me they seem to bring out more of a mood to the image. Backgrounds seem to fade away and its all about the subject.
When I was in high school I took one photography class and it was all black and white. It was strange at first because you don't see life in black and white. So I had to see through the camera and try to imagine what the photos would look like.
Textures and lines can be accentuated and dead space helps to balance shadows.
Of course it is not for everyone, but if you are taking photos I would challenge you to spend an afternoon or even a whole weekend only shooting in black and white.
You'll see that you will become aware of different things, contrasts and might even open up different locations you hadn't thought would have worked.
Please share your thoughts!