One of the longest-lived conspiracy theory websites in the world involves the Freemasons - on the surface, a group of dudes like the Kiwanis Club or the Rotary but, underneath, a wretched hive of Satanist scum and villainy that controls the world. These speculations have gone on for centuries, not helped by the group's notorious secrecy. While some people just think that the Masonic Hall is the back room where deals get made, others think the group is involved in more than that, planting subliminal messages in popular entertainment to mold the brains of consumers for nefarious purposes.
The Site: Freemasonry Watch