From CNN.com

NEW YORK (AP) -- Type "dentist" into Google from New York, and you'll get ads for dentists in the city. Try watching a Cubs baseball game from a computer in Chicago, and you'll be stymied. Pre-existing local TV rights block the webcast.

The same technology is also being used by a British casino to keep out the Dutch and by online movie distributors to limit viewing to where it's permitted by license, namely the United States.

The World Wide Web experience is becoming less and less worldwide: What you see and what you are allowed to do these days can depend greatly on where and even who you are.

Read it and weep here: