Disqus turn your blog comments into a Web wide discussion. Disqus makes your comments more interactive for readers and easier to manage for you all while connecting your community with other blogs. Disqus, pronounced discuss, is a service for blog comments. Disqus enables bloggers to make the conversations on their blogs more interactive and manageable. Our distributed comment system connects readers across blog communities, while empowering publishers in promoting their content.
In short, using Disqus is a better way for people to participate in conversations initially started by blog posts.