A reliable, customizable and privacy-focused serverless comment system with no coding required. Top features:
DISQUS - Disqus is a global comment system that improves discussion on websites and connects conversations across the web.
TiddlyMap - An interactive concept- and mind-mapping plugin for the personal note-taking software TiddlyWiki based on the Vis.js library. It's free and open-source!
Commento - A fast, bloat-free comments system to foster discussion on your website
Wisdomap - Wisdomap Medicine is a study aid that helps medical students create differential diagnoses and suitable management plans from a presenting complaint and structured revision notes.
Hyvor Talk - The Best Commenting Platform For Your Website
IOctopus - IOctopus is an online mind map service for a dive deep into the mind for the best ideas.