Mr. Peang Ratana is a freelance researcher and lecturer who has taught at several universities in Cambodia. He discusses how digital tools like Google Forms, Microsoft Forms, Google Meet, Slido, Facebook Live, Telegram, and Messenger can be used for eLearning and distance education. These platforms allow for online surveys, interactive question and answer sessions, video conferencing, live streaming, and messaging. Kahoot is also mentioned as a game-based learning platform that brings engagement to online education.