Social media marketing involves using social media platforms to promote products and services. It includes implementing marketing campaigns and establishing a firm's social media presence and voice. Leading social networking websites allow individuals, businesses, and organizations to build online relationships and communities. Social media provides information on consumer likes and dislikes to target audiences. Electronic word of mouth on social media can become viral if persuasive or funny. Planned social media content is generated by marketing teams while unplanned content is spontaneous reactions that may lack brand representation. Examples given are Apple's Tumblr page for iPhone 5c and LAYS and MAGGI social media campaigns.