http://en.wikipedia.org/wiki/9/11_Truth_Movement
From the goals section (hey, we're actually mentioned on wikipedia):
Several other groups and organizations also exist which involve activism, such as truthaction.org and truthmove.org.
Notice how large of a chunk the Ballot Initiative gets? But I like this (who's been editing on wikipedia lately?):
Several have been critical of the groups' claim of "competent, professional individuals of the highest caliber," in part due to the inclusion of Commissioner Edgar Mitchell, a former NASA astronaut and co-founder of the Institute of Noetic Sciences, who has stated beliefs supporting various UFO Conspiracy Theories[84][85][86][87][88] Activists have also questioned the reliability of individuals charged with overseeing the effort due to a history of disruptions and the repeated inclusion of discrediting speakers at public events.[89]