It is probably because they have created Google+. It is like Google Buzz but better and like Facebook but for Google.
Since Google+ released... google is wanting to focus more on google+ instead of Buzz... they will probabaly close it down in a few weeks or so..
Google Buzz was created in 2010.
Google Buzz ended in 2011.
Well, what happened is another company bought Google and they put down Google buzz and started Google+.
Yes, Google buzz is discontinued on November 24th, 2011.
Google Buzz is free. All you need to do is to create a Google account.
Yes, it is. Google Buzz is all about sharing the favourites within the group and recommending these for the public. Google Buzz Icon, if pressed, is followed by your gmail account. Google buzz icon can be integrated through downloading API from Google's Webmaster Tool. Yahoo has also buzz.
You can't anymore because Google discontinued Google Buzz in Oct 2011.
Yes, Google Buzz automatically geotags buzzes. They also geotag pictures posted from Google Mobile Maps.