The document discusses the growth of social media users from 2007 to 2012, with Facebook users increasing from 464 million to over 1.4 billion, and outlines strategies for effectively engaging audiences on Facebook, such as posting compelling photos and videos, being timely and seasonal, and using bold visuals in ads. It also provides tips for running an effective Twitter campaign, such as identifying an unused content launch date, creating relevant tweets and hashtags, and using advertising to promote tweets and profiles to maximize follower growth and engagement.