Facebook - Log In or Sign Facebook, login - Documentation, facebook for Developers Create an account or log into. Connect with friends, family and other people you know. Share photos and videos, send messages and get updates. Facebook Platform is an umbrella term used to describe the set of services, tools, and products provided by the social networking service. Log into, facebook, facebook Facebook - Apps on, google Play Facebook for third-party developers to create their own applications and services that access data. The current, facebook Platform was launched in 2010. The platform offers a set of programming interfaces and tools which enable developers. Is an American online social media and social networking service company based in Menlo Park, s website was launched on February 4, 2004, by Mark Zuckerberg, along with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. The founders initially limited the website's membership to Harvard students.