This document discusses the importance and growth of social media, focusing on Facebook, Twitter, and LinkedIn. It notes that over half of all adults now have social media profiles and use sites daily. The document then provides tips on using social media to build business communities by making more connections through websites, blogs, email newsletters, ads, and profiles. It suggests measuring return on investment from social media through clicks, inquiries, projects won, and job requests. Finally, it provides examples of Rotary International's social media presence and tips for individuals using social media like showing personality and admitting mistakes.