The document discusses several case studies of companies successfully integrating social media into their marketing strategies. It describes how Johnson & Johnson used Facebook and online games to target young adults and increase market share for their Acuvue contact lenses. It also discusses how Procter & Gamble used a mobile site and online community focused on the character "Max le Tampax" to educate young girls in France about tampons and change prejudices. Finally, it summarizes how a niche magazine called Distinctive Homes increased ad revenue and readership by 20% by uploading content to their Facebook page and running targeted Facebook ad campaigns.