brehash

This plugin adds the official <a href="http://blog.twitter.com/2010/08/pushing-our-tweet-button.html" rel="nofollow ugc">Tweet Button</a> from Twitter to your Pages, Posts or Home Page. It lets your users share links directly from the page they’re on. When they click on the Tweet Button, a Tweet box will appear pre-populated with a shortened link that points to the item that they’re sharing.
This plugin is very customizable via ‘rsh-Tweet Button’ under the ‘Settings’ menu in WordPress Admin. Change the look and feel, pozition and where to seen of the button.

rsh-Tweet

Adds the official Tweet Button from Twitter.com.

Alex Moss

Peadig

Quickly adds the Twitter follow button. Can be easily implemented into your page, post or theme template
<ul>
<li><a href="https://firecask.com/services/development/wordpress/" rel="nofollow ugc">FireCask</a> – our agency specialising in development and design of sites powered by WordPress.</li>
</ul>

FireCask’s Twitter Follow Button

Quickly adds the Twitter follow button. Can be easily implemented into your page, post or theme template

rsh-Tweet vs FireCask’s Twitter Follow Button