There are many fasting groups on FB, but also a thread here that started back in 2014 after Dr. Jason Fung appeared on the scene. http://forum.lowcarber.org/showthread.php?t=472377

With his new book out he has been doing podcasts everywhere (just put his name in search in your podcast store). These are in addition to all the information already on DietDoctor etc. The Balanced Bites podcast I listened to this morning would be excellent for anyone starting out as his first answer was about fifteen minutes long ( !) and he gave a brilliant overview of the various timings, and just about everything else to consider. [Maybe he has done too many of these lately it was so smooth, but my first reaction was this episode would be great for someone new]
http://balancedbites.com/podcast-archive/