How do you know what you think you know is correct?
It's all in the facts.
Peer reviewed scientific papers as the sources … or any normal encyclopedia will do nicely for most generic discussions … my answer for the title question. The question to ask is always ‘what are your sources’??? Potholer54 on YouTube has a large assortment of clips that debunk many creation myths as well as others simply and scientifically. Amazing what doing a little of one’s own research, applying a little common sense and thinking for oneself can do to filter much of the hype before one commits to it. I am not sure people know how easy it is to fraudulently present things for public consumption, with the express purpose of making the experts appear to oppose of their own views.
TV tricks of the trade -- Quotes and cutaways http://www.youtube.com/watch?v=07NMglQX6gE