As 'social' as social media networking first began, and while the personable traits apply to business pages as much as to personal pages, only tackle social media for your brand with a business head on.
For longstanding visitors to your website or fans of your social media profiles, your most popular blog posts might already be well known. But what about new website visitors and new customer prospects? How would they find your best / most expert / most useful tips and advice without searching long and hard for it? (NB the average internet is not going to do that).