Disqus vs. Question2Answer
Take a look at this side-by-side comparison of Disqus and Question2Answer.
At a Glance
Disqus
About Disqus
Disqus is a worldwide blog comment hosting service for web sites and online communities that use a networked platform.
Question2Answer
About Question2Answer
Question2Answer (Q2A) is a popular open-source Q&A platform for PHP/MySQL.