As such I've always rather liked the concept of Disqus (though it never really seemed to catch on) and the likes of JetPack that extended the experience and attempted to tie commentary and the social world together.
Recently, since Facebook produced Facebook Comments (all be it a bit fiddly to set-up - here's a decent FB Comments Wordpress plugin if you need it), the landscape of commentary has become irrevocably skewed towards social integration. For community management, this is great news.
Yesterday, somewhat inevitably, Google+ flopped out Google+ Comments.
Put simply, when folks comment on your content it's also shared on Google Plus. This works both ways, and if a visitor shares your stuff on G+ it'll also appear on your content, and if a dialogue then ensues it's there on G+ and your site/blog for all to see. Pretty simple, right?
This is a piece of cake to turn on in Blogger - in fact, next time you log in you'll probably be promoted to do so - and flawlessly connects your blog (or website) to the wider Google+ platform.
Cos this is some serious gourmet shit.
Social Signals - essentially, the human component in modern SEO. The more shares, +1's, and activity within Google Plus, the more Google is likely to favour you in it's 'organic' search results. Every comment now has the potential to be a share in G+. Every share in G+ is a social signal, and (if you're all set-up properly) a boost to your AuthorRank as well.The jury is still out on just HOW effective this will be, but with Google doing more and more to integrate G+ and the likes of AurthorRank into the SEO mix, this can't be ignored. Getting closer to giving us a self contained web experience within the G+ walled garden, Google Plus Comments is just yet another string to SEO's bow in the pursuit of preferential rankings.