I just implemented a cool feature on this blog called Subscribe to Comments. Previously, if a reader commented on a post, she’d need to revisit the post later to see if any subsequent comments were added. This is no longer the case.
Subscribe to Comments now allows said reader to select a checkbox before posting a comment, after which she can receive email notifications of further comments. (She can opt-out any time.) The addition of this component helps to foster a community around any given post, facilitating longer conversations and more engaging dialogue. A topic will now remain alive for anyone who remains interested it.
Enjoy. And play nice.