High Key Photography

Simple setup for product shots

http://www.gadgetinfinity.com/blog/tag/high-key-shot/

High Key Product Shot

How to Make a Low-key Image During the Day

Low Key Product Shot

http://www.jacartgallery.com/Other/BlackWhite/11062528_vqsJf6#!i=920428951&k=MPF8P

Jacart Gallery

Low Key Photography for beginners

http://www.lightstalking.com/low-key-photography

High Key, Low Key and mood

Lighting - High Key and Low Key

http://www.diyphotography.net/lighting-high-key-and-low-key