Google Buzz hit the world this week, but just what the heck is Google Buzz, how do you use Google Buzz, and why should you care? Google Buzz is yet one more social networking service plus social network aggregator. Imagine Facebook if Facebook also republished all of your public Google stuff – your Google Chat stream, your Picasa Links, etc.. Now imagine that you can also add your Twitter feed to that stream, and even add the RSS feeds for some websites that are under your control. That’s Google Buzz.

Earlier this year, Google was sued over its Google Buzz service. The Google Buzz lawsuit alleged that, among other things, with the rollout of Google Buzz, Google was in violation of the Computer Fraud and Abuse Act. Part of the issue was that when Google flipped the switch on Google Buzz, they had automatically created a social network for each of their Gmail users, assigning ‘followers’ to their Gmail users. The followers could see the users’ activities in other Google properties such as Picasa and Google Reader. In at least one known instance, that had the effect of suddenly allowing a woman’s abusive ex-husband to follow her Google Reader conversations with her new boyfriend.