Do you remember the 21st of September? That line from Earth Wind & Fire's hit "September" brings back fond memories for thousands of people. Nostalgia is the foundation of digital content company DoYouRemember.com's many platforms. The company's various sites feature videos, articles, and games that tap into positive cultural memories. DoYouRemember has more than five million monthly visitors. Michael Gitter, Founder and CEO of DoYouRemember.com, explains where the idea for the company came from. He also discusses the type of content that is driving the most traffic for the company's platforms. He says it's not just for older generations - even millennials and Gen Zers will find things they like.