I've never had much use for traditional "nursing magazines" -- occasionally there's a good article that explains a disease process really well or a sample protocol that makes sense, but for the most part, they're gloss and fluff and completely out-of-touch with real nurses.
My favorite publications are the ones that are really specific to my job and don't accept any advertising!!

There are a couple of wonderful risk management newsletters that I frequently share with the nursing staff, because the content is relevant and realistic. The ED Legal Letter is a monthly publication that our ER staff just loves -- it frequently has great "horror stories" about poor staffing, unsafe floating, incompetent physicians and the trouble those things can cause.
Subscriptions to these can be expensive, but if your facility is getting them already, you should be able to borrow them (check with the Quality Management department) if you're really wanting to read some timely and relevant content.