Disqus is a wonderful (and free) API/software platform to integrate for comments when you don't want to limit yourself to Facebook and have no interest in reinventing something done so well.
It is a solid, A-1 piece of software.
A much better way to manage comments on your website, i'm sure you'll agree.
Disqus is our comment service of choice for our blog
We use Disqus to power comments on our static blog.