Twitter for WordPress make twitter as comment for your blog.
Usage
To put submit form just add strings as follows. 
(You must not change submit form HTML at all. If you change something this plugin will not work correctly.)
<pre><code><?php twlink_for_wpcomment_submit("username"); ?>
</code></pre>
To put comments which is submitted to you blog through twitterLink for WordPress Comment, just add strings as follows.
<pre><code><?php twlink_for_wpcomment_recieve(); ?>
</code></pre>
If you want to customize, you can add 2 options. 
First option “display_comment_limit” is the limit number of comments to display (default value is “all”). 
Second option “islist” is boolean value and is the style setting option. 
If set this option as true then comments are displayed using 
<ul>
<li> tags, 
and if set this option as false then comments are displayed without 
<ul>
<li> tags,</li>
</ul>
</li>
</ul>
<pre><code><?php twlink_for_wpcomment_recieve("display_comment_limit","islist"); ?>
</code></pre>
example <code><?php twlink_for_wpcomment_recieve(5,true); ?></code>
If you want to add Link to twitterLink site add strings as follows.
<pre><code><?php echo twlink_for_wpcomment_link(); ?>
</code></pre>
Customization
The plug in provides the following CSS classes:
<pre><code>* form.tlfc_commentform: the submit form
* ul.twitterlink_fc: the main ul (if list is activated)
</code></pre>
<h3>Contact</h3>
Suggestion, fixes, rants, congratulations, gifts et al to help[at]seunze.com

twitterLink for WordPress comment

Twitter for WordPress make twitter as comment for your blog.

Miled

WordPress Social Login allow your website readers and customers to register on using their existing social accounts IDs, eliminating the need to fill out registration forms and remember usernames and passwords.
WordPress Social Login also allow you to import users contact list from Google Gmail, Facebook, Windows Live and LinkedIn.
WordPress Social Login gives you absolute control over users access to your website and comes a list of rules and restrictions for you to setup.
Easy to customize and integrate 
Wordpress Social Login come with a simple but flexible and fully customizable authentication widget. And if you are a developer or designer then you can customize it to your heart’s content.
Wide variety of providers 
Depending on the audience you’re targeting, you can choose from a wide variety of providers and services including: Social networks, Microblogging platforms, Professional networks, Media, Photo sharing, Programmers and Gamers networks.
Currently supported providers 
Facebook, Google, Twitter, Windows Live, Yahoo!, LinkedIn, Reddit, Disqus, Tumblr, Stackoverflow, GitHub, Dribbble, Instagram, 500px, Foursquare, Steam, Twitch.tv, Mixi, Vkontakte, Mail.ru, Yandex, Odnoklassniki, Goodreads, Skyrock, Last.fm, AOL and PixelPin.
Free, unlimited and white-label 
Wordpress Social Login is open-source and completely free. The source code is publicly available on <a href="https://github.com/hybridauth/WordPress-Social-Login" rel="nofollow ugc">GitHub</a> for anyone to help and contribute. You are free to use a WordPress Social Login in commercial projects as long as the copyright header is left intact.
Big thanks to everyone who have contributed to WordPress Social Login by submitting Patches, Ideas, Reviews and by Helping in the support forum.

WordPress Social Login

WordPress Social Login allow your visitors to comment and login with social networks such as Twitter, Facebook, Google, Yahoo and more.

twitterLink for WordPress comment vs WordPress Social Login