The best and easy way to do it, is by using the Disqus comments enabled on your blogger / wordpress blogs.
This what disqus says about this feature:
We were introducing Social Media Reactions, a new feature on Disqus that aims to connect the discussion on your site with the scattered conversations occurring everywhere else on the web. Today, people have many tools available to discover, read, and discuss great content. Blog posts and articles can be mentioned on Twitter, commented about on Digg, and even shared across FriendFeed. Now, these social media reactions can be connected back to your site keeping the conversation together. When your posts are being discussed on Twitter and Digg, these tweets and comments will appear within your Disqus powered comment thread. Here are two examples from inquisitr.com and avc.com (under the main comment thread).
Enable the Social meda features in Settings->General page for that blog in Disqus. If anyone shares the link ( probably shortened url) , Disqus automatically collects the the twitter and media reactions and displays under your blog post!







