I'm more into the freestyle/freeride side of skiing, tending to throw myself at jumps, rails and steep powder lines so my normal reads are fall line skiing (UK based) and freeskier magazine (US). Both are increasingly hard to find so I'm edging slowly towards just using the internet to get my ski related news. Again, for the freestyle side of things, freeskier have their own website and newschoolers.com provides quite a lot of content. I'm seeing fewer and fewer magazine choices across all topics in my local shops, so the internet may be your best bet.
If however, and I'm making big assumptions here, I'm correct in thinking you're more of an all mountain/racer kinda guy..... I can't help you really. Sorry