Apparently Juan Mann wrote an ebook about it, free of charge, available here: https://www.scribd.com/document/1871268/The-Illustrated-Guide-to-Free-Hugs
It looks like he also got shafted by Sick Puppies over the proceeds from that video: http://www.businessinsider.com/where-are-they-now-free-hugs-guy-got-screwed-over-by-the-band-who-made-his-viral-video-2010-8
Apparently Juan Mann wrote an ebook about it, free of charge, available here: https://www.scribd.com/document/1871268/The-Illustrated-Guide-to-Free-Hugs
It looks like he also got shafted by Sick Puppies over the proceeds from that video: http://www.businessinsider.com/where-are-they-now-free-hugs-guy-got-screwed-over-by-the-band-who-made-his-viral-video-2010-8