http://www.falundafa.org/ has info on Falun Gong/Falun Dafa. Not sure why they use 2 names. Wouldn't recommend mixing instruction from multiple instructors as you are likely to find questions that you cannot get answered, inconsistencies, etc. Also, it sounds like it could be quite "unhealthy" to practice Falun Gong/Falun Dafa in China (many practitioners who've practiced in public have been harassed, imprisioned, tortured, killed, etc.). Don't know if they've generalized this behavior to anything similar or if they just have a burr under their saddle about FG/FD.