This time i made a video tutorial, not a written tutorial. This tutorial is about how to use a plugin.
The plugin i want to share with you named WP to Twitter, this plugin is the best i can find on WordPress market (the best with new Twitter API v1.1).
You can get this plugin for free at http://wordpress.org/plugins/wp-to-twitter/
Please enjoy this tutorial video: http://bit.ly/1ccbwO2