PResponsive

This plugin will add a image below your posts, allowing your visitors to share your posts with their friends, on FaceBook, Pinterest, Google+, Twitter, Myspace, Friendfeed, Technorati, del.icio.us, Digg, Google, StumbleUpon, and other. After plugin is activated a buttons will appear after the content of the post.Clicking this button will bring the user to the bookmarking site. If the user isn’t logged in they will be prompted to do so. 
Post your articles to the social bookmarking sites and get traffic.

WP Social Bookmarking

WP Social Bookmarking plugin syndicates your blog posts in social networking sites.

Efficient Scripts

Auto publish to your social media accounts your new blog posts/pages/custom post types. 
You only have to configure your social network accounts like Facebook, Google My Business, Twitter, LinkedIn, Tumblr..
Auto re-publish old blog posts to all your configured social accounts. 
By auto sharing your old blog posts, you keep them alive and increase traffic to your blog!
Additionally Filter posts to be published/cross posted to social networks based on categories. 
(General section settings)
Multiple Accounts per social site supported. 
Possibility to nicely format the posted message per account, shortcodes supported.
Logs are generated each time there is an auto posting activity for each configured social network account. 
Easily follow the automated sharing process from Microblog Poster‘s logs section and debug your configuration if needed.
WordPress Multisite fully compatible. Rather than doing the ‘Network activation’, 
activate Microblog Poster for each sub blog.
Please visit Microblog Poster‘s <a href="https://efficientscripts.com/web/products/free" title="Microblog Poster's website" rel="nofollow ugc">website</a> , or
<a href="https://efficientscripts.com/web/contact" title="Contact us" rel="nofollow ugc">Contact us</a> , we’re providing support in the following languages:
<ul>
<li>We speak english ; </li>
<li>Причамо српски ; </li>
<li>Nous parlons français ;</li>
</ul>
Currently supported social media sites
<ul>
<li>twitter.com – Auto post to your account.</li>
<li>facebook.com – Auto publish to profile / page wall.</li>
<li>business.google.com – Auto publish to Google My Business.</li>
<li>plurk.com – Auto post to your account.</li>
<li>diigo.com – Auto submit bookmark of your blogpost.</li>
<li>linkedin.com – Auto publish to profile wall</li>
<li>tumblr.com – Auto publish to your blog.</li>
<li>blogger.com (blogspot.com) – Auto publish to your blog.</li>
<li>instapaper.com – Auto submit bookmark of your blogpost.</li>
<li>vk.com (vkontakte.com) – Auto publish to profile wall.</li>
<li>pinterest.com – Auto publish to pinterest board.</li>
<li>flickr.com – Auto publish to flickr.</li>
<li>wordpress blog – Auto publish to another blog.</li>
</ul>
The idea behind Microblog Poster is to promote your wordpress blog and reach more people through social networks. 
There’s a general agreement in the SEO community that social signals strengthen your blog’s page rank and authority. 
Microblog Poster is simply an intermediary between your blog and your own social network accounts. You’ll never 
see “posted by Microblog Poster” in your updates, you’ll see “posted by your own App name” or simply “by API”.
Microblog Poster in few words:
<ul>
<li>Auto publish to social media networks your new blog content</li>
<li>Auto publish old posts, tweet old posts</li>
<li>Sends out social signals and auto share to social media networks</li>
<li>Social signals and backlinks auto generator</li>
<li>Cross post to facebook , cross post to twitter</li>
<li>Facebook auto publish, Twitter auto publish, Pinterest auto publish</li>
<li>Auto publish to facebook , tumblr</li>
<li>Auto share to twitter , facebook , linkedin</li>
<li>Auto post to social media networks, Auto tweet</li>
</ul>

Microblog Poster – Auto Publish on Social Media

Auto publish your new and old blog content to Social Networks. Auto post to Twitter, Facebook, Linkedin, Pinterest, Blogger, Tumblr..

WP Social Bookmarking vs Microblog Poster – Auto Publish on Social Media