I always suspected the Earth was flat, but I believe the first time I really came across evidence for this was when I read Earth Not a Globe, probably the most important science textbook of the last 500 years
Says who?
Did you guys argue with your teachers in school or just secretly thought they were wrong?
Also, you have to be careful about the power of websites because I could go to the Giant Spaghetti Monster website and before long be convinced through some carefully worded arguments that this creature lives on the dark side of the moon...
However I don't believe in god and billions of people do, so in my own way I am part of a minority who believes a conspiracy... 
con?spir?a?cy (kn-sp?r-s)
n. pl. con?spir?a?cies
1. An agreement to perform together an illegal, wrongful, or subversive act.
2. A group of conspirators.
3. Law An agreement between two or more persons to commit a crime or accomplish a legal purpose through illegal action.
4. A joining or acting together, as if by sinister design: a conspiracy of wind and tide that devastated coastal areas.
Well I guess you could put it under 3 if you're feeling bold...