Earlier we wrote about How to create a button which will help others to share an article on your website. That article is here Google Buzz button is not Buzzing actually, as the title says that was a trick which will add the post to your Google reader and user will have to share the reader things to Buzz. Read more on that post (It says how you can add that kind of button on your site too).
Now Google officially supports buzzing an article directly to the Google Buzz. There two things available
1. Post to Buzz: This will allow your users to share an article from your website to buzz very easily. It have two methods one is
a Url like http://www.google.com/buzz/post?message=Geekiest%20Net&url=http://geekiest.net will add a Buzz with Geekiest Net as message and http://geekiest.net as Link
You can customize the behavior of the button by changing few atributes if you are using this method
2. Follow on Buzz
Below is an example of the Follow on Buzz button.
Read more here on Official post