Kodetop

This plugin allow insert Tweet Button on your blog or site. The button can be customized in the settings page. Tweet Button can be positioned a the top, bottom of content. You can use text shortcut <code></code> and PHP function <code>wp_tweetbutton();</code> for manual insert.
Features
<ul>
<li>Easy install</li>
<li>Panel for easy configuration</li>
<li>Config Button Style</li>
<li>Config Language of Button</li>
<li>Config Your Twitter Account</li>
<li>Config Related Account</li>
<li>Config Tweet text</li>
<li>Config display locations (entries, pages, home page)</li>
<li>Config position in content (before, after, none)</li>
<li>Text shorcut: <code></code></li>
<li>PHP Function: <code>wp_tweetbutton();</code></li>
</ul>
Manual usage of WP-TweetButton:
For include into post content use: <code></code>
For include in your template use: <code><?php wp_twitterbutton(); ?></code>
For more information visit <a href="http://blog.unijimpe.net/wp-tweetbutton/" title="plugin website" rel="nofollow ugc">plugin website</a>

WP-TweetButton Plus

This plugin allow insert Tweet Button on your blog or site.

Colin McGraw

Magnetic Creative

The Inline Click to Tweet plugin allows post authors to highlight text content from the visual editor, and make it tweetable by click within the post or page.
<h4>How To Use</h4>
The plugin will add a button to the Visual Editor – just highlight the text you want tweetable, and click the twitter icon in the editor’s toolbar. You will be shown some customization options, and once you hit ‘OK’ a shortcode will be wrapped around the selected content. You will need to view or preview the post to see the styles applied.
<h4>Features</h4>
<ul>
<li>Use the default twitter-branded styles, choose your own brand color, or completely customize with CSS.</li>
<li>URL shortening through goo.gl – more room for tweet content!</li>
<li>Automatically truncates tweets to fit within Twitter’s 140 character limit.</li>
<li>Attribute tweets to any handle (ex: via @yourhandle).</li>
</ul>
Inline Click To Tweet was built by <a href="http://www.magneticcreative.com" rel="nofollow ugc">Magnetic Creative</a>

Inline Click To Tweet

The plugin is fairly intuitive and works as expected, like that the feature/option set is limited to the necessities.
A good feature idea for future releases - shortcode content could be styled in the visual editor, and toggled on and off so you don't have to go in and delete shortcode tags.



Works As Described

Easily make inline portions/selections of your posts or pages "tweetable" from the visual editor.

WP-TweetButton Plus vs Inline Click To Tweet