Bing released a social content sidebar about six months ago. The huge influence and excitement that social networks generate has enormous interest for both users and business.
The social sidebar focused on four key elements:
Bing is now diving deeper through into the shares, likes, photos, comments and status updates that it sees on Facebook from those connected to you in order to make content more relevant and extend interaction potential with content. Additionally, the social side bar gives Bing social network capabilities without attempting to contend against Facebook and Linkedin in the way Google has built a social network. It has become a mission priority to boost activity for many websites (and search engines) by incorporating social sharing and recommendation tools to boost engagement.
The social sidebar just underwent a few interesting visual changes 6 months after it's initial roll-out.