Disqus is all about extracting the characteristics that make up great online communities and building that into a system that is both powerful and easy to use:

• Realtime comment system
  Comments become more like live discussions with realtime posting and updating. By offering a faster, more intuitive experience, Disqus is everyone's favorite way to comment.
• Notification and reply system
  The notification system lets people know when they've received a response. Best of all, they can continue the conversation straight from the email.
• Inline media embedding
  Full integration with media services such as Youtube, Flickr, and more. Attach media such as photos and videos right within the comments.
• Mobile commenting
  Fully compatible with mobile websites for commenting while on the go. The default mobile theme is formatted with smartphones, like the iPhone or Android phones, in mind.
• Community profiles
  These profiles can be popped up inline with comments, giving you a quick glance of the user and his activity on other communities.
• Social integration
  Full integration with Facebook, Twitter, and more. Let people login, comment, and share using social services they already use and love.
• The Community Box
  A quick way to show off what your community is made up of. The community box gives everyone a summary view of the activity and people participating on the site.
• Liking and sharing
  People can rate what they like by liking pages or comments and then sharing that on Facebook, Twitter, and other networks.
• Moderation tools
  Powerful and easy-to-use tools helps you keep your community under control. The moderation panel is designed for managing a large volume of incoming comments.
• Spam-Be-Gone
  Our in-house anti-spam technology keeps spam and unsavory people out of your community. Our anti-spam continually learns from the rest of the Disqus network to keep your site safe.
• Mobile apps
  Disqus apps are available for the iPhone, Android, and webOS phones. Manage your communities while you're on the go with these freely available apps.
• Blacklists and whitelists
  Make daily moderation easier with granular control over who gets to contribute within the community. Disqus gives you powerful tools such as blacklists, whitelists, and word filtering.
• Import and export
  Import existing comments into Disqus and sync up your data. All data is completely portable and can be exported at any time.
• International languages
  Disqus supports dozens of languages in addition to English. Complete your integration with native language support.
• SEO-friendly and local sync
  We offer plugins and integration methods that ensure compatibility with search engines.
• Theme customization
  Customize with CSS to smooth out the integration with your website. Or, use our advanced theme editor to craft your own custom theme.
• Tweets and reactions
  Disqus brings the conversation back to your site by collecting Tweets, mentions, and other reactions from around the web.
• Profile management
  Commenters control their personas and reputation across the different communities they participate on. Disqus makes it easy to track and keep conversations together.
• Activity streams
  Audiences stay engaged with insight into others' activity all over the web. Integrated activity streams let people see where else the smart people are talking.
• Connected communities
  Disqus reaches 200 million people every month across half a million websites and communities on the web. Keep the conversations lively by connecting your.