The Twitter Mentions As Comments plugin is a neat way to harvest all the tweets referring to your WordPress posts and display them as comments on your site.  The workflow is identical to the comment workflow on your site, and is controlled in Settings>>Discussion.  You configure how notifications, comment moderation, and author whitelists/blacklists work.  The plugin gets the poster’s real name and profile picture and links directly to the original Tweet.  And best of all, it does it automatically.

After activating the plugin, you’ll notice an entry added to your Dashboard Settings tab.  Here you can control the way the plugin operates:

If you tweet about your posts, you might what to blacklist your own Twitter account to avoid getting comments from yourself.

For support, check out the plugin’s site on GitHub.