Is there a component for reader 'comments'?

[liter0]

I just installed GS on my site, and I want readers to be able to comment, but I can't seem to find such component option anywhere.
Also I read it somewhere that you can actually inser comments component in the sidebar.
But what's the code for this component?

Thanks in advance for any guidance.

[Oleg06]

http://get-simple.info/forum/topic/1338/disqus-plugin/

[liter0]

thanks!