Many new dancers start learning Mainstream and Plus with the video square dance lessons on www.Saddlebrooksquares.com. The video for Right and Left Thru and a few others, for example, can be seen here. Calls aren't grouped in the same order as our class, but you'll see all of them on the list. Please, excuse the advertisements!
Another animation site shows calls on a fluid basis, and can be found if you click here.