Google has announced a new feature for Buzz, which is basically the service's version of the well-known retweet. If you follow a Buzz user who posts an interesting update, you can hit the "reshare" button (down with the comment, like, and email buttons) to repost that post to your own Buzz stream. Will a reshare button fuel Buzz growth? Comment here . Reshare only works for public posts. Private posts will not have the reshare link. However,