Google+ hopes to be a major alternative to Facebook, but the nascent social network is still deciding on some of its key elements.
A member of Google+ can sort acquaintances and friends into Circles, use Hangouts for conversations, and share Sparks with other members. Circles are groups of people such as coworkers or family members. Hangouts invite a group of people into the same text or video chat, and Sparks show people what links, videos, or websites are popular.