There was an article in the Wall Street Journal about this back in December. In particular it dealt with office supply stores having different online prices for

There was an article in the Wall Street Journal about this back in December. In particular it dealt with office supply stores having different online prices for different locations based on zip codes. http://online.wsj.com/article/SB10001424127887323777204578189391813881534.html http://online.wsj.com/article/SB1000142412788732377720457818...