We can post article after article, lecture, jump up an down and point to all the evidence in the world. But sometimes... all that's needed is a pithy comedian to set the record straight.
Dara O'Briain is such a man, and these six minutes encompass the mission of the JREF and other skeptical organizations succinctly and with hillarity.
The language is a bit rougher than you'd find on American broadcast television, so if you're offended by that type of thing, you might not enjoy this. For the rest of us, it's a treat. Direct link is found here: http://www.youtube.com/watch?v=VIaV8swc-fo