Organizations that I like:
Information Refuting Zeitgeist Movie
- https://www.youtube.com/watch?v=1hgX6w4U-2o ZeitGeist Debunked
- https://www.youtube.com/watch?v=knNjbWKwz8E The Real ZeitGeist Challenge
Where as a completion of http://www.biola.edu/academics/sas/apologetics/intro/ will provide a whole collection of historical information to support non-bliblical information showing the origins of Christianity, Judaism, and the doctrin their in. However, it is inconvenient to have this information exposed because it would disrupt the narrative of those who would teach lies about the bible.
Many more to be posted. If you have a few of your own, comment below and I will review. Anything I can validate I seriously consider.