WordPress basic installation lack features like YouTube embedding, specialized twitter widget, and even stats. If you are in a self-hosted WordPress blog, these features are given to you to the expense of sponsoring the company, Automatic. If you would love to have these features even though you already have WordPress in your website, you can do so in just a few easy steps. Just download the plugin JetPack and WordPress’ Automatic plugin is brought to your website. Just create a WordPress.com account, download and install JetPack plugin into your admin panel, follow your instructions, and your good to go.
Read more about JetPack here: http://wphacks.com/jetpack-supercharge-your-self-hosted-wordpress-site/