A social networking service (also social networking site or SNS) is a platform to build social networks or social relations among people who share interests, activities, backgrounds or real-life connections. A social network service consists of a representation of each user (often a profile), his or her social links, and a variety of additional services. Social network sites are web-based services that allow individuals to create a public profile, to create a list of users with whom to share connections, and view and cross the connections within the system.
The product social feature lets you add "Share on various social networking sites like Twitter," Facebook "Like," and Pinterest "Pin It" options to your store's product pages. Enabling this feature allows your customers to easily spread the word about your products to their social media networks. This boost to your marketing efforts helps you reach a wider audience, and can help to generate more quality traffic for your store.