Facebook Questions & Answers : Social Media Marketing Facebook is an American online social media and social networking service based in Menlo Park, California. The Facebook website was launched on February 4, 2004, by Mark Zuckerberg. Facebook is one of the most leading social media website and becoming the vital platform for marketing. Worldwide, there are more than 1.94 billion monthly active Facebook users (Source: Facebook MAUs) In this blog, we are trying to solve Facebook related