Disqus, pronounced “discuss”, is a service and tool for web comments and discussions. Disqus makes commenting easier and more interactive, while connecting websites and commenters across a thriving discussion community.
DISQUS FOR WORDPRESSDISQUS FEATURES
Uses the Disqus API
Comments indexable by search engines (SEO-friendly)
Support for importing existing comments
Auto-sync (backup) of comments with Disqus and WordPress database
Earn money with adverts placed in your comment form