The 2015 report on Fortune 500 CEOs' social media presence indicates that many are still not fully engaged, with no CEO active on all major platforms and 41% featured on company YouTube channels. While there has been an improvement in social media adoption since 2014, with 61% of CEOs still having no presence, LinkedIn remains the most popular platform, especially among new CEOs. The report emphasizes the potential benefits of being a social CEO, including customer engagement and talent attraction.