This document discusses the use of social media platforms LinkedIn, Twitter, and Facebook in a professional context for lecturers. It provides an overview of each platform, including how they work, their potential uses for professional networking and development, and relevance for communicating with students. LinkedIn is described as formal and focused on career advancement, while Twitter allows informal "in the moment" updates and Facebook is very informal but the most popular platform among students. Ground rules for using Facebook to communicate with students are recommended.