artesea

Allows simple integration between your sidebar widgets and the official twitter widget 
** THIS WIDGET WILL STOP WORKING AFTER MAY 7TH 2013 ** 
This is when Twitter stop unauthenticated calls to their API, and block the old 
widgets. https://dev.twitter.com/blog/api-v1-retirement-final-dates 
This plugin won’t support the new Twitter Widget. 
For more information about them please visit: https://twitter.com/settings/widgets

(Un)offical Twitter Widget

Allows simple integration between your sidebar widgets and the official twitter widget ** THIS WIDGET WILL STOP WORKING AFTER MAY 7TH 2013 **

H. Peter Pfeufer

This Plugin will add a twitter timelina as a sidebarwidget to your wordpress-blog. This timeline is provided by twitter as you can see <a href="http://twitter.com/about/resources/widgets/widget_profile" rel="nofollow ugc">here</a>. 
Now you dont need to copy and paste the code from twitter with your settings anymore, just install the plugin and set the options.
Features
<ul>
<li>Easy install</li>
<li>Panel for easy configuration</li>
<li>Customisation via CSS in settings</li>
</ul>
Available Languages
<ul>
<li>English</li>
<li>German</li>
</ul>

WP Twitter Timeline

Add a sidebarwidget with your twitter timeline to your WordPress-Blog.

(Un)offical Twitter Widget vs WP Twitter Timeline