sherman-snow

This plugin adds a set of cool icons and widgets at the end of your post for your readers to share. Widgets are Twitter, Facebook and Google +1. It supports large icons and small icons.
Info : http://wordpress-plugins.us/special-social-sharing-icons-4/
<h3>Changlog</h3>
1.1 Fix bug and added information about plugins
1.2 Tested 3.4.1 
1.2 fix activate error 
1.3 Tested 3.4.2

Special Social  Sharing icons

Adds a set of cool icons and widgets at the end of your post for your readers to share. Adds more new icon....

achi

WP-Buzz is a plugin to put a post to your [Buzz] account everytime you publish a blog post. All you have to do is setup this plugin, enter your sitename,oauth_consumer_key,oauth_consumer_secret and your domain.

WP-Buzz

Send a post to your Google Buzz account everytime you publish a blog post.

Special Social Sharing icons vs WP-Buzz