Google has added some branding guidelines regarding the use of Google Buzz Social Icon. You can create Google Buzz button for your site at Google Buzz Stuff.
How to use Google Buzz Social Icon?
Here are some example snippets for Google Buzz Social Icon:
With Counter:
[code]<a title="Post on Google Buzz" href="http://www.google.com/buzz/post" data-button-style="normal-count"></a>
<script type="text/javascript" src="http://www.google.com/buzz/api/button.js"></script>[/code]
Without Counter:
[code]<a title="Post on Google Buzz" class="google-buzz-button" href="http://www.google.com/buzz/post" data-button-style="normal-button"></a>
<script type="text/javascript" src="http://www.google.com/buzz/api/button.js"></script>[/code]