Justin Sternberg

In the spirit of WordPress and “owning your data,” this plugin will allow you to import and backup your tweets to your WordPress site. Includes robust options to allow you to control the imported posts formatting including built-in support for WordPress custom post-types, custom taxonomies, post-formats. Add an unlimited number of user accounts for backup and importing.
Plugin is built with developers in mind and has many filters to manipulate the imported posts.
1.1.0: Updated to work with the Twitter 1.1 API. Uses the <a href="https://github.com/jtsternberg/TwitterWP" rel="nofollow ugc">TwitterWP</a> library.
Like this plugin? Checkout the <a href="http://j.ustin.co/QbG3mQ" rel="nofollow ugc">DsgnWrks Instagram Importer</a>. Feel free to <a href="http://j.ustin.co/QbQQ0a" rel="nofollow ugc">fork this plugin on github</a>.

DsgnWrks Twitter Importer

Backup your tweets & display your twitter archive. Supports importing to custom post-types & adding custom taxonomies.

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

DsgnWrks Twitter Importer vs FireCask’s Twitter Follow Button