Some great links to the infamous conspiracy theories here. I think in response to some of the above comments around the need for these theories in the first place, knowledge is a beautiful thing and those whom choose to seek it, and examine its validity in a constructive and unbiased way, will probably proposer over those that do not not. It is our god given choice to search for answers to questions and indeed pose in some cases uncomfortable questions to understand fully the circumstances of any theory. Once information is attained individuals then have it in their power to formulate their own judgment and arrive at their own conclusions.