Are there any free WordPress plugins that automatically post to social media?

If you have installed Jetpack on Wordpress then it gives you the power to publish your content automatically social on networks like - Facebook Twitter LinkedIn, among others Go to Publish section -> click on Publicize and connect the required social media accounts to which you want to sync your content. Hope it helps.

There are a number of plugins that you can use to automatically post WordPress posts to social media. Here are 5 ways to auto post WordPress posts to Facebook.1.) Jetpack Publicize a WordPress plugin that will automatically post to Facebook, Twitter, LinkedIn, Tumblr, Path and Google+ for you.2.)1 click Retweet/Share/Like - similar to a combination of Jetpack Sharing and Publicize. It provide social media buttons for your WordPress content as well as auto posting.3.)  NextScripts: Social Networks Auto-Poster  4.) http://dlvr.it - a 3rd party system which takes RSS feeds and auto post it to social media5.)  IFTTT - A connection service with over 300 channels which allows you to connect many services together.Here's a http://%20https://www.quora.com/Are-there-any-free-WordPress-plugins-that-automatically-post-to-social-media which will show you how to automatically post WordPress posts to social media. I hope it helps you to auto post WordPress posts to WordPress.

With sites like Facebook,twitter,G+,Linkedin etc ,  gaining immense popularity of late, there are http://www.wptemplate.com/plugins/share-buttons-wordpress-plugin.html which can easily put across the information of the page to the  intended individuals without making it appear like a push marketing  tactic.