GeekRMX

This plugin allows you to easily add Twitter @Anywhere to your blog, enabling the @Anywhere features:
<ul>
<li>Auto-linkification of @usernames</li>
<li>Hovercards</li>
<li>Follow button</li>
<li>Tweet Boxes</li>
<li>Retweet button</li>
</ul>
You can enable and configure each function from the plugin settings page:
<ul>
<li>Customize the label, content and dimensions of your Tweet Boxes.</li>
<li>Display the post title and short URL into the Tweet Box.</li>
<li>Shorten your URLs with bit.ly or is.gd.</li>
<li>Insert custom Tweet Boxes by using shortcodes.</li>
<li>Clicking the Retweet button will launch a special Tweet Box with Lightbox effect (<a href="https://wordpress.org/extend/plugins/twitter-anywhere-plus/screenshots/" rel="ugc">screenshot</a>).</li>
<li>Choose from two Twitter birds to be displayed above the Retweet Box 🙂</li>
</ul>
Languages:
<ul>
<li>English (en_US)</li>
<li>Spanish (es_ES)</li>
<li>French (fr_CA)</li>
<li>Belorussian (be_BY)</li>
</ul>
In order to use @Anywhere, you must first register your blog for a free API key with Twitter. You can do so at the following URL: http://dev.twitter.com/anywhere/apps/new (<a href="https://wordpress.org/extend/plugins/twitter-anywhere-plus/faq/" rel="ugc">FAQ</a>)
<a href="http://www.ngeeks.com" rel="nofollow ugc">nGeeks.com</a>
<h3>Translations</h3>
<ul>
<li>English (en_US) [default]</li>
<li>Spanish (es_ES)</li>
<li>French (fr_CA) – <a href="http://siliticx.ca" rel="nofollow ugc">Charles Desaulniers</a></li>
<li>Belorussian (be_BY) – <a href="http://pc.de" rel="nofollow ugc">Marcis G.</a></li>
</ul>
You can help translating the plugin into your language. 
Use the <code>tap-default.po</code> file included with the plugin.

Twitter @Anywhere Plus

This plugin allows you to easily add Twitter @Anywhere to your blog, enabling the @Anywhere features.

svil4ok

Twitter Button is a WordPress plugin that allows you to easily integrate <a href="http://twitter.com/goodies/tweetbutton" rel="nofollow ugc">Tweet Button</a> in your blog.
Features
<ul>
<li>Easy customization.</li>
<li>Three methods to include Twitter Button in your blog – automatic, manual or by shortcode.</li>
<li>Exclude Twitter Button from certain pages (admin option).</li>
<li>Styling option for the div element that surrounds the button.</li>
<li>Twitter Button can be placed in different positions in the post – top, bottom or both.</li>
<li>Admin panel language support</li>
<li>Restore option</li>
</ul>
Translations
<ul>
<li>Bulgarian (bg) by <a href="http://www.svil4ok.com/" rel="nofollow ugc">Svilen Popov</a></li>
<li>English (en) </li>
<li>French (fr) by <a href="http://wpchannel.com/" rel="nofollow ugc">Aurelien Denis</a></li>
<li>Italian (it) by <a href="http://www.blog.webgenerate.net/" rel="nofollow ugc">Webgenerate</a></li>
<li>German (de) by <a href="http://dopanic.de.vu/" rel="nofollow ugc">Christian Schulz</a></li>
<li>Macedonian (mk) by <a href="http://wp.mk/" rel="nofollow ugc">Boris Kuzmanov</a></li>
<li>Romanian (ro) by <a href="http://byubay.nodomain.ro/" rel="nofollow ugc">Byubay</a></li>
<li>Spanish (es) by <a href="http://blog.josemi.net/" rel="nofollow ugc">Josemi</a></li>
<li>Croation (hr) by <a href="http://www.mojportal.com.hr/" rel="nofollow ugc">Roberto Bilic</a></li>
</ul>
If you have created your own language pack, or have an update of an existing one, you can <a href="http://www.svil4ok.com/contact" rel="nofollow ugc">send it to me</a>. If you want to translate the plugin in your language, but you don’t know how, <a href="http://www.svil4ok.com/contact" rel="nofollow ugc">contact me</a>, I’ll help you out.
<a href="http://www.svil4ok.com/wordpress-plugins/twitter-button/#installation" rel="nofollow ugc">More information</a> | <a href="http://www.svil4ok.com/wordpress-plugins/twitter-button/" rel="nofollow ugc">Demo</a> | <a href="http://www.svil4ok.com/wordpress-plugins/twitter-button/#screenshots" rel="nofollow ugc">Screenshots</a>

Twitter Button

Twitter Button is a WordPress plugin that allows you to easily integrate Tweet Button in your blog.

Twitter @Anywhere Plus vs Twitter Button