Google+ is a social network that allows users to connect with others through asymmetric relationships, where one can follow others without being followed back. Launched in 2011, it offers features such as profile creation, circles for organizing contacts, and video chat through Hangouts, making it appealing for social selling. While it has benefits like targeted marketing through Sparks and easy consolidation of followers, there are concerns about existing competition and the potential for low engagement if the platform doesn't gain traction.