Google Latitude is a location-aware mobile app developed by Google. Basically, Google Latitude allows a mobile phone user to allow certain people to track their location. Now you can share your Google Latitude location as your status message with all of your Google Talk or Gmail chat contacts, including anyone that can already chat [...]

 
Google Buzz, the latest feature from Google has definitely generated alot of "buzz" in term of privacy (pun intended).

Google launches the latest built-in social networking feature for Gmail called Google Buzz. The main features of Google Buzz are auto-following of all your current Gmail contacts, easy sharing with the rest of web 2.0 applications e.g. Facebook, flickr, twitter and many more, public and private sharing of updates and Gmail inbox integration.