Al Mithani

Do you love Reddit-style comments? Do you submit your blog post to Reddit only to find the discussion there is much more active than the one at your own blog? Do you wish you could show Reddit comments as they appear on Reddit on your own blog post?
With ReddiComments, you can! ReddiComments allows you to use a simple shortcode to embed ANY Reddit discussion in your blog posts.
Step 1: Submit your blog post to Reddit 
Step 2: Add this shortcode at the bottom of your blog post:
[reddiComments link=”http://link_to_your_comment_page_on_reddit”]
Step 3: Sit back and join the conversation on Reddit!
Please note: to get the Reddit comments, this plugin makes an external call to an API hosted at http://reddicomments.com. The only information it sends this API is the link that you provided – no private information is ever sent to or from the ReddiComments plugin.

ReddiComments

Allows you to easily add any Reddit comment page into your blog post via a shortcode.

goldenapples

This plugin aims to support community link-sharing, social bookmarking, and discussion of links in the WordPress environment.
This is still at an early stage of what I hope will be a much more ambitious project. If you want to try this out, please give me feedback.
I will guarantee backwards compatibility with all data saved by the plugin, so it should be safe to install and activate, and as I add features, your existing posts and links will work with them just fine.
See the plugin’s <a href="https://github.com/goldenapples/recommended-links/wiki" rel="nofollow ugc">wiki page on github</a> for more up-to-date documentation (its hard to keep documentation updated in multiple places).

ReddiComments vs Recommended Links for WordPress