Google would like to have access to your location

Internet Explorer users with the Google toolbar are seeing something new: They're being prompted by Google to "share their location."

"Google would like to have access to your location," reads the alert, appearing atop Google results pages. "The Google Toolbar will periodically use the network to keep your location up to date." Beside the message is a big button labeled "Share my location" and a smaller one labeled "Don't share."

What does this mean? Should you agree to share, or o...