Google started another new service today, Latitude, which helps you locate your friends in Real Time. Latitude uses GPS on their phone to track them and let you know. You can also contact them with SMS, IM, or a phone call.
See where your friends are and what they are up to on your phone or computer.
Quickly contact them with SMS, IM, or a phone call
Maintain complete control over your privacy
Location sharing starts only when both you and a friend agree. Invite friends via email or easily add them from your Gmail contacts.
You can share, set, or hide your location - or turn off Google Latitude - from the privacy menu. You can also hide your location or share only a city-level location with certain friends. For more information, see the Privacy FAQs.
Create a status message and upload your photo within Latitude. It also syncs directly with Google Talk. Check your friends’ status messages to see what your friends are up to.
Contact your friends
Quickly contact your friends with an SMS, IM, or phone call. You can also get directions to lead you to your friends.
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