Social media includes various online platforms that allow for sharing and interacting with communities. It is a two-way communication channel that should be used with an understanding of one's audience. Top universities are using social media effectively through regular blog updates, large Facebook and YouTube presences, and strategic use of multiple platforms. Studies show most colleges, Fortune 100 companies, and MBA applicants actively use social media platforms like Facebook, YouTube, and Twitter. Digital consultant Amy Vernon has built a large following across these channels.