Google Plus (aka G+ or Google+) is Google's most recent answer to Facebook. And, by all means, Google Plus appears better equipped than Google's previous efforts (i.e. Google Buzz, Orkut, Wave) to challenge Facebook's social networking reign. Google wants to strengthen its social identity because social networking platforms possess a more growable user-base than search engines. Social users also stay engaged longer, increasing advertising exposure. And Google would love to reclaim some of the advertising that has gravitated to Facebook in recent years.