Not sure if anyone posted this already, but I just watched the 1st in the series (I think they only have the 1st 3 up at this point), but this looked to be a really good video series for newbies on the AR15.
"Ideology deludes, inspires dishonesty, and breeds fanaticism. Facts, experience, and logic are much better at leading you to the truth."
"Despite the conviction and seeming depth of knowledge with which ideologues speak, they are intellectual weaklings--joiners--who defer to systems of belief and charismatic gurus for their ideas." -- Daniel J. Flynn