Sometimes still pictures are easier to follow than a moving video. Here are links to the two tutorials I posted here on the board:
This is my original tute for joining with a narrow join:
Quilt As You Go (QAYG) Tutorial
This is how to join QAYG blocks with a wide sashing:
QAYG With Wide Sashing-- How I Do It
Hope you enjoy QAYG. It's so much fun!