Jetpack is a WordPress plugin that supercharges your self-hosted WordPress site with the awesome cloud power of WordPress.com.

For more information, check out Jetpack.me.

Features include:

  • Simple, concise stats with no additional load on your server. Previously provided byWordPress.com Stats.
  • Email subscriptions for your blog’s posts and your post’s comments.
  • Social networking enabled comment system.
  • Likes, allowing your readers to show their appreciation of your posts.
  • Monitor and manage your site’s activity with Notifications in your Toolbar and on WordPress.com.
  • Simple, Akismet-backed contact forms.
  • The WP.me URL shortener.
  • Hovercard popups for your commenters via Gravatar.
  • Easily embedded media from popular sites like YouTube, Digg, and Vimeo.
  • The ability to post to your blog from any email client.
  • Integration with and automatic posting to your favorite social networks including Twitter, Facebook, Tumblr, Path, and LinkedIn.
  • For the Math geeks, a simple way to include beautiful mathematical expressions on your site.
  • A widget for displaying recent tweets. Previously provided by Wickett Twitter Widget
  • Your readers can easily share your posts via email or their favorite social networks. Previously provided by the Sharedaddy WordPress plugin.
  • Your writing will improve thanks to After the Deadline, an artificial intelligence based spell, style, and grammar checker. Previously provided by the After the Deadline WordPress plugin.
  • With Carousel active, any standard WordPress galleries you have embedded in posts or pages will launch a gorgeous full-screen photo browsing experience with comments and EXIF metadata.
  • A CSS editor that lets you customize your site design without modifying your theme.
  • A mobile theme that automatically streamlines your site for visitors on mobile devices.
  • Mobile push notifications for new comments via WordPress mobile apps.
  • The ability to allow applications to securely authenticate and access your site with your permission.
  • Creative formats for your image galleries: mosaic, circles, squares, and a slideshow view.
  • Add post sliders and other highlights to your theme with Featured Content.
  • Search once, get results from everything! A single search box that lets you search posts, pages, comments, media, and plugins.
  • Configure widgets to appear only on certain pages with the Widget Visibility module.
  • Upload and insert videos into your posts thanks to VideoPress.
  • Link Jetpack and your Google+ Profile to add mutliple Google features to your site.
  • Sign in to your self-hosted WordPress site using your WordPress.com log-in credentials.
  • Jetpack Monitor will keep tabs on your site, and alert you the moment that downtime is detected.
  • and many more to come!