Not every webpage or blog has a “Buzz This!” button. Just like you tweet, you can now send any page to Google Buzz with a google chrome extension.
“Submit this to Google Buzz!” is a Google Chrome extension that helps you to buzz any page to Google Buzz right from the page you are on.

This extension sits on the top right corner of your browser. It has the same functionality as a “Buzz This!” button. It shares the link in Google Reader, which in turn, gets posted to Buzz
Note: Let me inform you here that you should have Google Reader connected to Buzz to post it on Google Buzz
Go ahead and download the extension here.