This discussion might be of value to you: http://stackoverflow.com/questions/2500716/open-source-comment-engines http://stackoverflow.com/questions/2500716/ope

This discussion might be of value to you: http://stackoverflow.com/questions/2500716/open-source-comment-engines http://stackoverflow.com/questions/2500716/open-source-comme... There are also lots of other discussions related to this on SO. In my opinion: with disqus you get to be lazy. That's fine. I use it on my personal site. I don't think it allows for infinite branching (like on Reddit), but that requires a pretty nifty nosql solution, were you to do it on your own.