Some of the most advanced work and theories when it comes to magick are currently appearing in blogs on the web. Because much of this is "cutting edge," there are going to be disagreements. As long as these are arguments based on logic (a series of premises or ideas that lead to a conclusion) as opposed to simple personal attacks ("You're wrong and your mother dresses you funny"), this is a good thing. People present their arguments, the logic goes back and forth, and people reading the information can come to their own conclusions.
Recently there has been a spate of posts debating the value and even the reality of what is commonly called "magickal energy" and working with that energy.