Disqus offers the best add-on tools for site owners to power discussions, increase engagement, and earn revenue.
An embeddable comment widget for websites, blogs, ecommerce & static pages. Joint Comments distributes JOINT tokens (erc-20 based cryptocurrency) to publishers based on the value of traffic.
It is free to use up to 250k page views / month.
Livefyre was an embeddable real-time commenting platform that turned comments on any site into live conversations, increased the quality of those conversations, and drove traffic to content around the web.Discontinued
Livefyre was acquired by Adobe and integrated into the Adobe Experience Manager. The Community Comments feature is being discontinued: https://livefyre.zendesk.com/hc/en-us/articles/215571503-Details-and-important-dates
Metype is a complete engagement solution. It keeps your audience hooked by allowing rich media comments, reactions and sharing options. Create a free account instantly and be on your way to engage and build your audience.
A very fast, feature-full, and privacy-focused comment service for handling discussions on the internet. At 4.6 kB with no dependencies, it's the fastest comment service around.
Docuss is a comment/discussion/collaboration system for your website or web app, based on Discourse.
This project is not active anymore.