Matt Liberatore's YouTube Fridays was featured in ASEE's Advances in Engineering Education journal

"YouTube Fridays devotes a small fraction of class time to student-selected videos related to the course topic, e.g., thermodynamics. The students then write and solve a homework-like problem based on the events in the video. Three recent pilots involving over 300 students have developed a database of videos and questions that reinforce important class concepts like energy balances and phase behavior." ...