Pigi

Using this small plugin you’ll be able to deliver content Around the web.
You can choose what Social Network website include in your post; what layout use to this plugin between:
<ul>
<li>Horizontal (default)</li>
<li>Vertical</li>
</ul>
Supported Website:
<ul>
<li>Facebook</li>
<li>Twitter</li>
<li>Friendfeed</li>
<li>StumbleUpon</li>
<li>Feed RSS DELIVERY</li>
<li>Digg</li>
<li>Google Buzz</li>
<li>Yahoo Buzz</li>
</ul>

Social Network Sharer

Using this small plugin you'll be able to deliver content Around the web.

Florian

A very simple bar for outgoing links in your posts.
Features:
<ul>
<li>Feature a “DiggBar like” or “Facebook like” to all external links in your posts</li>
<li>Whitelist for links that you do not want to apply the WP Super Bar</li>
<li>Share your links easly with facebook, digg, twitter, etc…</li>
<li>You can easly edit WP Super Bar CSS from your WordPress Backend</li>
<li>You can customise text and logo.</li>
</ul>

WP Super Bar

A very simple bar for outgoing links in your posts.

Social Network Sharer vs WP Super Bar