Imagine a tool that helps people to build their portfolios. As a part of it, the tool allows its users to add disqus/facebook comments widget on their portfolios so that people visiting their portfolios can comment on the portfolio.
From the tool perspective, It needs permissions/capability to host such a widget on the portfolio creator's behalf such that the portfolio creator can still do moderation around the comments posted; by either logging in to his disqus or facebook account.
How can I go about implementing such a thing?
An answer around integrating facebook comments plugin would be better as most people have facebook accounts.
UPDATE:
Disqus has widgets for platforms like Wordpress, Blogger etc. The situation is similar as I am trying to support a disqus widget for my app/platform so that each user of my app can add a disqus widget.
I found a similar question on SO: