Jonestown wasn't what initially got my interest, but it just so happed to be the destination of my question. My original inquiry was about the origin of the phrase "drinking the Kool-Aid", which if you didn't know is a reference to over 900 Americans killing themselves with a poisoned fruit drink in the South American country of Guyana.
Now, I could go on and just regurgitate "fun facts" from the Jonestown Wikipedia entry and a PBS documentary (which I'll post below), but I'll let you get as lost as you want in the subject. It's a wild and tragic tale my friends.