The New York Times is hosting the first event in their new series OFFSTAGE. This event, to be held on June 11th, will feature performances by actors and playwrights from recent Broadway shows and some of the NYT's editors and writers will speak about highlights of the recent theatre season and the season to come.
This site offers videos that use freely available footage and entire performances from theatre companies around the world. They also have a limited collection of archival footage available to scholars by permission for expressly educational purposes.
The Library for the Performing Arts' resident silent film historian Steve Massa and silent film music expert Ben Model present weekly screenings of silent slapstick comedy shorts on YouTube, with commentary and live music.