It adds Google buzz button to your post/page
This plugin is easy to install like other plug-ins of WordPress as you need to just follow the below mentioned steps:
Copy Folder 'google_buzz_button' from the downloaded and extracted file.
Paste it in 'wp-Content/plugins' folder on your WordPress Installation
Activate the plugin from Dashboard / Plugins window.
Now Plugin is Activated, Go to the Settings - Google Buzz section to check the options. Please refer Usage section for more details